Activity of a muscle spindle is to as activity of the golgi tendon organ is to

The muscle spindle activity is to contraction as of the Golgi tendon organ is to inhibition of contraction. The first blank space answer is contraction while the second blank answer is inhibition of contraction. The muscle spindle is the sensory receptors with the body of the muscle that can detect changes in the length of this muscle.

The answer is a if u read the definition it makes sense