The correct answer is B. She will have been.
"She" is the only third person singular pronoun used in all 4 sentences. "Will have been" is the future perfect tense and these two combined make the third person singular, future perfect tense.
Answer:
I found it...
Explanation:
JFK only wanted the U.S. and all other countries at peace. He was up for a challenge, but in his speech he just wanted "peaceful solutions" for all problems. It didn't matter if it was about global warming, global hunger, or global economic struggles. It didn't even matter if it was the entire world or just a few counties, or maybe the United States. He wanted peace. His point in his inauguration was to remind the U.S their strength and keep everything happening in an order it should be in.
Hope this helps a little, at least. :)