A hypothetical three-step metabolic pathway consists of intermediates W, X, Y, and Z and enzymes A, B,

Question:

A hypothetical three-step metabolic pathway consists of intermediates W, X, Y, and Z and enzymes A, B, and C. Deduce the order of the enzymatic steps in the pathway from the following information:
1. Compound Q, a metabolic inhibitor of enzyme B, causes Z to build up.
2. A mutant in enzyme C requires Y for growth.
3. An inhibitor of enzyme A causes W, Y, and Z to accumulate.
4. Compound P, a metabolic inhibitor of enzyme C, causes W and Z to build up.