Following is given a randomly arranged list of events that occur at neuromuscluar junction to trigger mucle contraction.
(i) Receptor sites on sarcolemma
Nerve impulse
(iii) Release of `Ca^(+2)` from sarcoplasmic reticulum
(iv) The neurotransmitter acetylcholine is released
(v) Sarcomere shorten (vi) Synaptic cleft
(vii) Spread of impulses over sarcolemmna on T-tubules Which of the following gives the correct sequence of these steps?

Options

A. `(ii)rarr(iv)rarr(i)rarr(vi)rarr(vii)rarr(iii)rarr(v)`
B. `(ii)rarr)(iv)rarr(vi)rarr(i)rarr(vii)rarr(iii)rarr(v)`
C. `(i)rarr(ii)rarr(iii)rarr(iv)rarr(v)rarr(vi)rarr(vii)`
D. `(vii)rarr(vi)rarr(v)rarr(iv)rarr(iii)rarr(ii)rarr(i)`

Answer

B