Respuesta :
Based on the information given regarding the claim, the best option is B. The Nation will lose its place as a world leader if it does not immediately join the space race.
What is a claim?
A claim simply means the main argument in the work. It's what the author wants the readers to know.
The claim that President Kennedy made in "President John F. Kennedy's Speech at Rice University" was that the Nation will lose its place as a world leader if it does not immediately join the space race.
Learn more about claims on;
https://brainly.com/question/2748145