Explanation

Reading the question: we will logically complete the argument, knowing that clues in the prompt will render one choice objectively more logical than the others. Given a blank, we will always guess what goes in that blank before looking at the choices. The prompt switches points of view midway. Where we end up is that the thing in the blank needs to be a reason that UNpasteurized is milk is NOT too dangerous--even though it's too dangerous for babies. So it's going to be something like, "it's perfectly safe for most people, just keep it away from the babies." That's our filter.

Applying the filter: the closest answer choice is (C). Other answer choices are pro-unpasteurized milk, namely (A). But (C) is better than (A) because it specifically draws the distinction that has been set up about babies. As we were predicting, "just keep it away from the babies." (C) expresses that logical continuation with the phrase "for other drinkers of milk." The correct answer is (C).