Which explanation for why President Kennedy supported human rights so strongly in his speech is best supported by textual evidence?

A. President Kennedy thought the human rights of Americans were in jeopardy at the time.

B. President Kennedy wanted to emphasize how much more he cared about
human rights than the opposing party did.

C. President Kennedy knew that many Americans had fought for human rights
throughout history and wanted to respect and continue that fight.

D. President Kennedy knew the American public was unconcerned with human
rights for others around the world and wanted to rally their support for his
cause.