All these measures will augment employment oppurtunities.

A. constrain

B. restrain

C. diminish

D. circumscribe

Answer: Option C

Solution(By Examveda Team)

Augment : make (something) greater by adding to it; increase.
Constrain : compel or force (someone) to follow a particular course of action.
Restrain : prevent (someone or something) from doing something; keep under control or within limits.
Diminish : make or become less.
Circumscribe : restrict (something) within limits.

Antonym of Augment is Diminish