Please help Why did President Kennedy most likely use the first-person collective voice (we, us, our) to write this speech?

A. President Kennedy used this voice to make a strong point to enemy countries that his country and allies were a united front against them in the wars they were forging.

B. President Kennedy used this yoice to make Americans feel like he was really
listening to them, and he had real ambitions of his own. He wanted to seem like a servant of the American people.

C. President Kennedy used this voice to drive home his point that we are all part of a global community and are therefore responsible for keeping peace and working toward ending poverty.

D. President Kennedy used this voice inconsistently in the speech and as a political tool. He only used it when he wanted to seem like he was the voice of the American people. He actually felt quite powerful and acted on his own ambitious agenda.