Given below are two statements.

Statement I : Contraction of the muscle is initiated by the active pumping of calcium ions back into the sarcoplasmic reticulum.

Statement II : Relaxation of the muscle is initiated by binding of calcium with a subunit of troponin on actin filaments.

In light of the above statements, choose the correct answer from the option given below. 

Both statement I and statement II are incorrect.

Relaxation of the muscle is initiated by the active pumping of calcium ions back into the sarcoplasmic reticulum (SR). This process removes calcium ions from the cytoplasm, leading to the detachment of calcium from troponin, which ultimately causes muscle relaxation.
Contraction of the muscle is initiated by the binding of calcium ions with a subunit of troponin on the actin filaments. When calcium binds to troponin, it induces a conformational change that moves tropomyosin away from the myosin-binding sites on actin, allowing myosin heads to bind to actin and initiate muscle contraction.