What is a quota system? A. It is a way to remove limits on any topic.
B. It is a way to place a limit on how much of something is
allowed in a given instance.
C. It is a way to change units to the metric system.
D. It is a formula to help convert units within the metric
system.

B. It is a way to place a limit on how much of something is allowed in a given instance.

Explanation:

A quota refers to the limit on a particular thing. It can be used by the government of a country to curtail the number of goods that are brought into the country.

quota is a way to remove limits. answer A

Explanation:

quotas are minimums

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

i think that the answer is polishing peanuts