it's number d.
because Americans immunity system wasn't strong as for that of the Europeans
I hope it helps ;D
Answer:
nope
Explanation:
A group that tries to influence the government on one particular issue.
lol it is 4
China
Im just gonna pick china.
transcontinental railroad to eastern U.S
well I dont know anything so this is a 50/50
unless you give a lesson that this question is in
