Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
By Harry Harrison Illustrated by Kramer of intelligence to figure it would be me. I talked first, bold attack being the best defense and so forth. accidental or deliberate. Four: The fact that they would probably let another repairman in, under antagonistic toward future ancestral messengers. I stripped off my tattered lizard suit back in the ship, very glad that Transcriber’s Note This etext was produced from I have a little job I know you’ll enjoy. Repair job. The Centauri “ What expensive—and this relic is on one of the main routes. We have to last forever—or damn close to it. When one of them breaks down, it is never like that at all. I have a fleet of expensive ships that are equipped to do almost anything—manned by a bunch of irresponsibles like you .” I nodded moodily at his pointing finger. “How I wish I could fire you all! Combination space-jockeys, mechanics, engineers, soldiers, con-men and anything else it takes to do operate!” I recognized this deathless line as the curtain speech and crawled to my feet. He threw the Mark III file at me and went back to scratching in keep that account a secret. His spies were getting more efficient every figuring a way to outfigure me. the spaceport. hyperspace. Not that many people do, but it is easy enough to understand -space the regular rules don’t apply. Speed and to even tell if they had moved. The beacons solved that problem and opened the entire universe. They are built on planets and generate Triangulation and quadrature of the beacons works for navigation—only it follows its own rules. The rules are complex We travel in well-stocked ships that carry a little bit of everything overly efficient repair machinery. Due to the very nature of our job, we spend most of our time just rocketing through normal space. After all, the navigator, using every beacon I could get an accurate fix on. The a built-in safety factor I never could eliminate from the machine. than spend time just barreling through normal space, but apparently Tech knows this, too. They had a safety factor built into the computer so you just about finished a correspondence course in nucleonics. Most company grades your pay by the number of specialties you can handle. All this, with some oil painting and free-fall workouts in the gym, passed this business, you learn early when and where to risk your own skin. The this was used to cool the reactor that powered the monstrosity. If the water was still there, the beacon was still there—inside the pyramid. The natives, who, of course, weren’t even mentioned by the idiots who constructed the thing, had built a nice heavy, thick stone pyramid around the beacon. the stone pile was now covered with lizards of some type, apparently the local life-form. They had what looked like throwing sticks and arbalasts irritate the things who had built the pyramid. A great beginning for a job and one clearly designed to drive a stronger man than me to the bottle. Normally, a repairman stays away from native cultures. They are poison. Anthropologists may not mind being dissected for their science, but a to go on a planet with a culture, it is usually built in some inaccessible place. Why this beacon had been built within reach of the local claws, I had yet to find out. But that would come in time. The first thing to do was make contact. To make contact, you have to know the local language. fool-proof. It swished down and landed at night in the bank of the local mud wallow. This was a favorite spot that drew a good crowd during the day. In the morning, when the first wallowers arrived, I flipped on the recorder. After about five of the local days, I had a sea of native conversation in the memory bank of the machine translator and had tagged a few expressions. This is fairly easy to do when you have a machine memory to work with. One of the lizards gargled at another one and the second one It gurgled out through the speaker in the local tongue and he turned around. When you get enough reference phrases like this in the memory bank, the MT brain takes over and starts filling in the missing pieces. As soon as him easily enough. He was the Centaurian version of a an outcropping of rock and wait for him. religion. pushed a switch and a handful of the local currency, wampum-type shells, It all began with the land bridge. Apparently the local lizards had been distant continent. The idea that the race would develop and might reach continent never occurred to the beacon mechanics. Which is, of magic water—the reactor-cooling water pumped down from the atmosphere condenser on the roof. The radioactivity in the water didn’t hurt the natives. It caused mutations that bred true. could have had a lizard fry, fixed the beacon and taken off. Only “native life-forms” were quite well protected. There were spy cells on my ship, all of which I hadn’t found, that would equipment. Working have to look exactly like them, just something close, to soothe the native mind. It’s logical. If I were an ignorant aborigine of wearing a suit of plastiflesh that looked remotely humanoid, I would at Centaurians. When the head was done, I peeled it off and attached it to an attractive tails. The lizards didn’t wear clothes and I wanted to take along out-of-the-way dry spot where the amphibious natives would never go. A flying lizard, sort of a cardboard pterodactyl, and the slowly flapping enough for the natives. The first one that spotted me screamed and I folded my arms in a regal stance. “Greetings, O noble servers of the Great God,” I said. Of course I didn’t say it out loud, just whispered loud enough for the throat mike to catch. This was radioed back to the MT and the translation shot back to a speaker in my jaws. The natives chomped and rattled and the translation rolled out almost instantly. I had the volume turned up and the whole square echoed. Some of the more credulous natives prostrated themselves and others fled “You are a liar! You are no ancestor of ours! We couldn’t back out. “I said your ancestors sent me as emissary—I am not one of your ancestors. Do not try to harm me or the previous ones had all been pyramid proper. While it was being opened, the First Lizard turned to doorway labeled in archaic script MARK III BEACON—AUTHORIZED PERSONNEL ONLY I unzipped the front of my camouflage suit and pulled out the from constant polishing. One of the eager lizards had managed to open a circuit box and had polished the switches inside. While doing this, he had thrown one of the switches and that had caused the trouble. Rather , that had Ninety per cent of the machinery had no moving parts and had suffered no wear whatever. Other parts they had beefed up, figuring they would wear, but slowly. The water-feed pipe from the roof, for example. The pipe they were loaded in a metal crate. In the darkest hour before dawn, the without being seen. I watched the priests through the pryeye while they tried to open it. When they had given up, I boomed orders at them through a speaker in the crate. They spent most of the day sweating the heavy box up through the from the blind lizards when they heard me ripping the wall open to get at the power leads. I even hooked a gadget to the water pipe so their Holy Waters would have the usual refreshing radioactivity when they There were a few minutes while the water began to gurgle down through the dry pipe. Then a roar came from outside the pyramid that must have shaken its stone walls. Shaking my hands once over my head, I went down blind lizards. In spite of their hospitality, I couldn’t accept. “What—you dare interfere with the messenger of your ancestors!” I had the speaker on full volume and the vibration almost shook my head off. in the water. “The ancestors are annoyed and have decided to

<question>:
Which of the following technologies does the main character not use to impress the natives?

<options>:
A Robots
B The Beacon
C Explosives
D Microphones

<answer>:

B