What Would Be the Effect on Muscle Contraction If Troponin

What would be the effect on muscle contraction if troponin were experimentally altered to no longer interact with tropomyosin,so the complex could no longer bind to actin?

A) Muscle contraction could no longer occur.
B) Muscles could not relax after contraction.
C) Muscle contraction would be weakened but would still occur as long as tropomyosin is functional.
D) ATP could not be hydrolyzed by enzymes in the muscle.