The answer is B. This is because it was during the Great Depression.
There is not an exact answer, but I believe it is millions.
Two things that increased american interchanges in the late 1800s were "b. the telegraph and telephone," since both of these creations significantly accelerated correspondence and made it more productive.
Answer: The answer is ether a or c.
Explanation: I say this bc the Reagan Doctrine is anawnsed histery, and there was a Ripple Effect from Reagan's 'Economic War' on the USSR. So in conclusion im not that sure but at least i can tell you that it is one of thous two answers :)
