What evidence did joseph mccarthy present to prove that communists inside the united states did more to spread communism around the world than communists abroad?

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain