@WendyCurrington That's exactly correct. The point is that it's very possible that another team, with a smaller probabilistic chance than you, will win.

To give one more illustration. There are often upsets in sports. Teams that are predicted to have the highest chance of winning the whole thing are beat by "worse" teams. It is then possible that one of these "worse" teams will win the whole thing who, initially, had a lower probability of winning.

@WendyCurrington The point is that the team, while it may have the highest chance, is not x>50%. There will be a winner, but the overwhelming case, in your example, is that 70% of the time it will be another team, any team that is not yours.

The answer to the question is that it is not more likely for the given event to happen than not happen.

Two things can be true in this situation: that Team A has the greatest chance amongst everyone, and that Team A is still unlikely in totality to win. Let me present this like a lottery. Pretend a lottery has 1000 tickets. You buy 100 tickets, and 900 other people buy a single ticket. You have the most tickets by far. In a 1-1 comparison between you and any given individual, it is overwhelmingly more likely that you will win rather than they. However, the comparison is not you and one other. The comparison is you and your 100 tickets vs the 900 others. This is a 10% vs 90% situation. Yes, you have the greatest chance out of ANY GIVEN individual to win the lottery, but it is still VERY likely that you will not win it.

Note to a lot of people who are having trouble with the question. The most important part of the question stem is "most weakens". Everything other than choice B, are either irrelevant or does nothing. B does something, barely, but it is something to weaken the argument, viz. pointing out potential dissimilarities in the analogy. Which is all to say, the choice that weakens "the most", not necessarily is a one-hitter quitter, is the right one no matter how uncomfortable it feels to choose it. If all of the other choices blow, and there is one you don't like, but is relevant, that's the answer (probably).