From the wording of your question, especially the words "the following", I'm pretty sure you're looking at a list of choices that you're not sharing. There's no way that anyone can pick the right one if he can't see the list.
"Business owners" is the one group among the following choices given in the question that was <span>key to McKinley's victory in the presidential election of 1896. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that the answer has helped you.</span>
A president can serve two terms. Each term is 4 years. So he can serve a total of 8 years.
OPTION A is right answer that is broadcast, Internet, and print media ,