Please help me with this question

answer:

c= population

Explanation:

doesn't have anything to do with economy, number of senators can be only 2 and electoral college is federal. hope the answer is correct.

answer:

population

Explanation:

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation:

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.