Assertion: on stimulation, a muscle cell releases calcium ions `(Ca^(2+))` from sarcoplasmic reticulum.
Reason: By reacting with a protien complex, `Ca^(2+)` uncover active sites on the actin filaments.
A. Given below are assertion and reason. Point out if both are true with reason being correct explanation
B. both true but reason is not correct explanation
C. assertion true but reason is wrong
D. both are wrong
