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

<passage>:
I'm afraid we'll never know the answer to that exact question, since I'm not brave enough to expose my own taste to a real test. But I'm brave enough to expose my friends'. This summer, while working at Microsoft, I put out a call for volunteers for a "science of beer" experiment. Testing candidates had to meet two criteria: 1) they had to like beer Twelve tasters were selected, mainly on the basis of essays detailing their background with beer. A few were selected because they had been bosses in the Microsoft department where I worked. All were software managers or developers all were male, but I repeat myself. Nearly half had grown up outside the United States or lived abroad for enough years to speak haughtily about American macrobrews. Most tasters came in talking big about the refinement of their palates. When they entered the laboratory (which mere moments before had been a Microsoft conference room), they discovered an experiment set up on the following lines: 1 Philosophy                : The experiment was designed to take place in two separate sessions. The first session, whose results are revealed here, involved beers exclusively from the lager group. Lagers are the light-colored, relatively lightly flavored brews that make up most of the vattage of beer consumption in the United States. Imported lagers include Foster's, Corona, and Heineken. Budweiser is a lager Beer snobs sneer at lagers, because they look so watery and because so many bad beers are in the group. But the lager test came first, for two reasons. One, lagers pose the only honest test of the ability to tell expensive from dirt-cheap beers. There are very few inexpensive nut brown ales, India pale ales, extra special bitters, or other fancy-pantsy, microbrew-style, nonlager drinks. So if you want to see whether people can taste a money difference among beers of the same type, you've got to go lager. Two, the ideal of public service requires lager coverage. This is what most people drink, so new findings about lager quality could do the greatest good for the greatest number. 2 Materials                : Ten lagers were selected for testing, representing three distinct price-and-quality groups. Through the magic of the market, it turns out that lager prices nearly all fall into one of three ranges: Grolsch. Import lager (Holland). $1.67 per pint. (See an important .) Chosen for the test because of its beer-snob chic Samuel Adams Boston Lager. National macro-microbrew. $1.56 per pint. (That was list price. The following week it was on sale for $1.25 per pint, which would have made it do far better in the value rankings.) Calls itself America's Best Beer. Has dark orangey-amber color that was obviously different from all other lagers tested. The Safeway that supplied the beers didn't carry any true bargain-basement products, such as "Red, White, and Blue," "Old German," or the one with generic printing that just says "Beer." The experiment was incomplete in that regard, but no tester complained about a shortage of bad beer. Also, with heavy heart, the test administrator decided to leave malt liquors, such as Mickey's (with its trademark wide-mouth bottles), off the list. They have the air of cheapness but actually cost more than Bud, probably because they offer more alcohol per pint. also, they were just going back to software coding when they were done.) Saltines were available to cleanse the palate. The cups were red opaque plastic, so tasters could judge the beer's color only from above. There was no time limit for the tasting, apart from the two-hour limit in which we had reserved the conference room. One experimenter (the boss of most of the others there) rushed through his rankings in 10 minutes and gave the lowest overall scores. The taster who took the longest, nearly the full two hours, had the ratings that came closest to the relative price of the beers. (This man grew up in Russia.) The experimenters were asked not to compare impressions until the test was over. Description: "Amusing presumption," "fresh on the palate," "crap," etc. 1. Best and Worst. Least scientific, yet clearest cut in its results. Eleven tasters named a favorite beer. Ten of them chose Sam Adams . The other one chose Busch , the cheapest of all beers in the sample. (The taster who made this choice advises Microsoft on what new features should go into the next version of Word.) Busch was the only beer to receive both a Best and a Worst vote. Here again one costly beer-- Sam Adams --shows up well, while another, Grolsch , continues to struggle, but not as badly as the medium-price Miller Genuine Draft . Sam's success could reflect its quasi-mislabeling, presenting a strong-flavored beer as a "lager." It could also reflect that participants simply thought it was good. (Only one guessed it was Sam Adams.) As for Grolsch ... it is very strongly hopped, which can seem exotic if you know you're drinking a pricey import but simply bad if you don't. MGD overtook Grolsch in the race for the bottom because, while many people hated Grolsch, some actually liked it 3) Value for Money: the Taste-o-meter® . Since this experiment's real purpose was to find the connection between cost and taste, the next step was to adjust subjective preference points by objective cost. The Taste-o-meter rating for each beer was calculated by dividing its corrected average preference rating by its price per pint . If Beer X had ratings twice as high as Beer Y, but it cost three times as much, Beer Y would have the higher Taste-o-meter rating. When the 10 beers are reranked this way, the results are: 4) Social Value for Money: the Snob-o-meter® . In addition to saying which beers they preferred, the tasters were asked to estimate whether the beers were expensive or not--in effect, to judge whether other people would like and be impressed by the beers. One taster perfectly understood the intention of this measure when he said, in comments about Beer B (Heineken), "I don't like it, but I bet it's what the snobs buy." The Snob-o-meter rating for each beer is similar to the Taste-o-meter. You start with the "group" ranking--whether the tasters thought the beer belonged in Group 1 (cheap), 2, or 3--and then divide by the price per pint. The result tells you the social-mobility power of the beer--how impressive it will seem, relative to how much it costs. The Snob-o-meter rankings are: One and only one beer truly survived the blind taste test. This is Sam Adams , which 10 tasters independently ranked "best" without knowing they were drinking a fancy beer. (They knew it was darker than the others but couldn't have known whether this was some trick off-brand sneaked into the test.) Apart from Sam Adams and Grolsch, the tasters really had trouble telling one beer from another . This conclusion is implicit in many of the findings, but it was really obvious during the experiment itself, when the confident look of men-who-know-their-beer quickly turned to dismay and panic as they realized that all the lagers tasted pretty much the same. The evidence suggests other implications about specific beers. For instance, the comments about Coors Light are much less enthusiastic than the average-or-better numerical rankings. Most tasters paused to complain about it--"fizzy and soapy"--before giving it reasonable marks. But the main implication, and the most useful consumer news from this study, is a radically simplified buying philosophy for lager beers. Based on this study, rational consumers should: 1) Buy Sam Adams when they want an individual glass of lager to be as good as it can be.

<question>:
Why did the author want the tasters to taste lagers?

<options>:
A They all sneer at lagers
B It is the most common beer in the US
C It is his favorite beer
D It would be new to most of them

<answer>:

B