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

<passage>:
on Mars Somebody had to get the human We're going without masks to save oxygen for the return trip (Jones assures me there'll be trip to Mars. He was always getting with the help of the aliens. Or maybe I should call them the Martians. Jones calls them. They took away our rifles and brought us right to Kroger and Pat, without our even asking. Jones is easily. When we came upon them (a group of maybe ten, huddling about them." "Nonsense," said Louie, sipping stream, and picked us all up and took us into a hole in the cliff wall. come together. I can't remember which one we came in through, and neither can anyone else. Jones make it a gift to Martian archeologists? There's a Martian guarding the So I went on the first trip to Mars. And I kept a diary. This is the launching we're aimed toward where Mars better be, or else). There are five of us on board. A we're on it. Martians keep coming pilot, co-pilot, navigator and biochemist. other. A little Martian came near Martian whistled like crazy and them," said Kroger. "We shoulda brought water pistols," Jones muttered. Pat said maybe we can swim to and right now he's telling jokes in the washroom with the co-pilot. Jones (that's the co-pilot I didn't quite catch his first name) is raw, in a centrifuge, and keep it down. A Martian threw a stone at Jones today, and Jones threw one back at him and broke off a couple of scales. The Martian whistled The navigator's name is Lloyd had to lift him out of the swirling cold water, with the scales gripped Kroger tells me that the pilot's studied them in the uncertain light, then tasted them and grinned. The Martians are made of sugar. Later, same day . Kroger said that the Martian metabolism got here, with my typewriter and to make insulin. They store their energy on the outside almost pure water, and that it washes away (from the inside, of course) the sugar they need for energy. I asked him where the sugar came from, and he said probably their bodies isolated carbon from "How about a game sometime?" "Sure," I said. "Do you have a board?" He didn't. I knew the formula for water) to make sugar, a common carbohydrate. Like plants, on Earth, he said. with the help of sunpower, be easy. Don't know what we'll use for pieces, though. Jones (I still haven't learned his first name) has been up with the pilot all day. He passed my room on the way to the galley (the spectra (another Kroger word) necessary to form the sugar. scales like prisms, to isolate the kitchen) for a cup of dark brown coffee (they like it thick) and told me that we were almost past the "I don't get it," I said politely, met the pilot. He is doing so, "and then we cross this stream, fill the boots with water, and our way to freedom." "Which tunnel do we take?" again." "I dunno," said Jones. "Remember those teeth The Martians we'd land on Mars upside down. He to follow toward the place above which the jeep still waited. Jones got the rifles out of the stream (the Martians had probably thought they were beyond recovery there) and we found the jeep. It got back to the ship quickly. First thing we did on arriving was to break out the stores and have a celebration feast just outside the on Mars?" door of the ship. up a star map. Pat slept mostly all day in his Martians, and they're made of compartment, and Jones sat and watched the screen revolve. There sugar). "Why," I said, "can't we just tell With Martian rime, Venusian slime, October 5, 1960 Learned Jones' first name. He wrote something in the ship's shortly after landing." Lloyd blinked, then nodded back and walked around the Mars, so escape velocity didn't Jones and Pat are up front watching the white specks revolve on that black velvet again. there are two baby Martians loose on board ship. Pat told him he (AFAR) system. And the water gauges are going down. But the clincher is those two sugar crystals Lloyd had grabbed up when we were in that zoo. They're gone. to go. I saw Mars Earth for instructions. We can't. void headed for Earth, with enough air and water left for maybe three days—if the Martians don't take Mars has Martian reproductive processes. Kroger through the airlock. However, it was decided that responsibility was pretty well divided. Lloyd had gotten the crystals, Kroger had only studied them, and Jones had brought them aboard. So Kroger stays, but meanwhile again. We're going to land, so the air is getting worse. Pat suggested did me at takeoff. Earth seems awfully to wear gas masks with oxygen the Martians get bigger—they'll from Earth. So we just have can't afford the water we need to melt them down. Besides, the melted crystals might all turn into little Martians. Jones says he'll go down spitting. Pat says why not dismantle interior of rocket to find out where chess again. Jones won the beard contest. Pat gave him a cigar he'd smuggled on board (no smoking was allowed on the ship), and Jones threw it away. He doesn't smoke. June 20, 1961 The Martians ate the bread. Jones came forward to tell us the loaves were cooling, and when he got back they were gone. However, he did find a few of the red crystals on the galley deck (floor). They're good-sized crystals, too. Which means so are the Martians. Kroger says the Martians must This time the vote went against Kroger, but he got a last-minute reprieve by suggesting the crystals be pulverized and mixed with sulphuric acid. He says this'll produce disappeared, but I kept going. Finally saw the real ship, and Lloyd and Jones waving their arms at me. They were shouting through their masks, but I couldn't hear them. for us. The acid-sugar combination not only Brief reprieve produces carbon but water vapor, and the gauge has gone up a notch. That's when I heard the noise behind those Martians. me. I was too scared to turn around, but finally Jones and Lloyd came running over, and I got up caught one of the Martians in the enough nerve to look. There was the rocket. having another Martian still on to make a landing. carry us to Earth and we can die than you." He shuddered. "Ran off when we fired." "Where," said Jones, "are Pat and Kroger?" Martian is still with us. He's where my trail and followed another, very much like the one that had been paralleling mine when Jones and thing. "We'd better get them on the radio," said Jones, turning back toward the ship. There wasn't anything on the them away. They hop like kangaroos it will float till we're rescued, if spotted us and got us and my diary aboard, and towed the rocket to San Francisco. News of the "captured Martian" leaked out, And we're locking up the ship. the jeep to follow the aliens' that would do. There are about a thousand of those crystal-scales on a Martian. So last week we found out, when falls, a new Martian springs up from Mars. to go down. Going down was Jones' idea, not mine. Lloyd for a week. Jones was picked up attacking a candy factory yesterday, and Kroger and I were allowed June 22, 1961 setting, so we're waiting till tomorrow to sign on for the flight to I haven't heard from Pat or and clear. The aliens seem to have six or seven toes. It varies from

<question>:
How did Martians get aboard the ship?

<options>:
A Kroger brought two sugar crystals aboard.
B Lloyd brought two sugar crystals aboard.
C Pat brought two sugar crystals aboard.
D Jones brought two sugar crystals aboard.

<answer>:

D