Once Congress Establishes a Policy by Enacting Legislation, the Immediate

Once Congress establishes a policy by enacting legislation, the immediate next action is taken by the:

A) legislative branch that enforces the new policy through its agencies.
B) executive branch that enforces the new policy through its agencies.
C) legislative branch that ensures the legislation is constitutional.
D) judicial branch that ensures the legislation is constitutional.
E) executive branch that evaluates the validity of the policy.