Some of the muscles of the hip and lower limb cross more than one joint.

If there are 12 different intermediate products produced during production of a molecule in a cell, we can expect that there

A) is one enzyme that carries this process through all 12 stages to the end product.
B) are about 12 enzymes, at least one responsible for each step in the metabolic pathway.
C) is one enzyme for degradation and another enzyme for synthesis.
D) there may not be any enzymes involved if this is a natural cell product.
E) must be 12 different raw materials combined in the cell by one enzyme.