Which Statement Best Describes What Occurs Over the Course of the Following

Multiple Choice

Which statement best describes what occurs over the course of the following reaction?

A) Two hydrogens are added to acyl-CoA, forming a double bond.
B) Two hydrogens are added to acyl-CoA, breaking a double bond.
C) Two protons are added to acyl-CoA, forming a double bond.
D) Two hydrogens are removed from acyl-CoA, forming a double bond.
E) Two protons are removed from acyl-CoA, forming a double bond.