Really bad test questions!!

Don't you guys just hate it when there is a terrible test question! Here is a question, that I think sucks!!!

I can't remember the exact wording--

- You know that your patient has fully understood how to perform his creatine clearance test when he makes the following statment:

A: I will cath myself to get my specimen
B: I will completley empty my bladder into the container
C: It is okay if I accidentlly flush some urine down the toliet
D: I will collect all my urine for 24 hours


So--I picked B. However, my teacher says the answer is D. But, in a creatine clearance test you are supposed to throw away your very first morning urine (or at least that is what we were taught) My teacher admits that the question is bad--but wont give me the 2 points. I just don't understand how D can be correct, when you are not supposed to collect "all" of the urine.

Any insight?