Which of the Following Statements About Congress and the Executive

Which of the following statements about Congress and the executive branch is most accurate?

A) The Constitution explicitly prohibits Congress from providing specific guidelines to executive agencies for implementing laws.
B) Starting around the time of the New Deal, Congress has tended to draft legislation that offers very specific guidelines for implementation by the executive.
C) Congress has never given executive agencies broad mandates and has always drafted legislation that offers very specific guidelines for implementation by the executive.
D) Starting around the time of the New Deal, Congress has tended to give executive agencies broad mandates and to draft legislation that offers few clear guidelines for implementation by the executive.