Respuesta :
Answer:
C. They are allowed under the necessary and proper clause of the constitution is the correct answer.
Explanation:
The powers that are exercised by the congress but it is not directly granted to it by the constitution are known as implied powers. They are mentioned under necessary and proper clause under Article One of Section Eight. It allows congress to pass laws which are considered necessary for exercising its enumerated powers. Most of the laws that are justified by the elastic clause and enacted under the doctrine of implied powers are controversial.