The correct answer is A. Students will vote for presidential candidates who prioritize lowering tuition costs,
By mentioning that the majority agrees on the statement "College affordability is one of our top priorities" they mean that most of them would like for tuition to be inexpensive or reasonably priced. As well as mentioning that many students stated that they had a difficult time funding their tuition, which relates to the same idea that they would want tuition to be less expensive.