Plz
the removal policy was in place for years.

select the best answer choice.
a.
4
b.
21
c.
41
d.
54

21 years

Explanation:

I am pretty sure that, that is the best answer.

calvin taught his followers that human beings needed to follow strict rules to overcome their nature and do good. second choice

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.