When Congress Obliged Itself to Follow 11 Important Laws It

When Congress obliged itself to follow 11 important laws it had previously been exempted from,it created the Office of Compliance to oversee the law,rather than have the president execute the law because

A) the president controlling day-to-day operations of the legislature violates the Separation of Powers.
B) the leadership wanted to control the office itself.
C) the president did not want the job.
D) it was cheaper.
E) Congress wanted to avoid actually following the law.