Events occurring in muscular contraction
(i) H-zone disappears
(ii) A band widens
(iii) I-band reduces in width
Width of A band is unaffected
(v)M-line and Z-line come closer.

Options

A. (i), (iii), (iv) and (v)
B. (i), (ii) and (v)
C. (ii), (iv) and (v)
D. (i), (ii) and (iii).