Assertion `:` Contraction of a muscle fibre takes place by the sliding of the thin filaments over the thick filaments.
Reason `:` The central part of thick filament is not overlapped by thin filaments in a resting state.
A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.