Define imperialism *
Your answer
Idk

A policy of extending a country's power and influence through diplomacy or military force

Explanation:

Imperialism is a policy or ideology of extending a country's rule over foreign nations, often by military force or by gaining political and economic control of other areas. Imperialism has been common throughout recorded history, the earliest examples dating from the mid-third millennium BC.

Hope this helps :)

the answer is b: a lockout