During muscular contraction, which of the following events occur?
H-zone disappears
(ii) A-band widens
(iii) I-band reduces in width
(iv) Width of A-is unaffected
(v) M-line and Z-lne come closer
(v) M-line and Z-line come closer
A. (i), (iii), (iv) and (v)
B. (i) , (ii) and (v)
C. (ii), (iv) and (v)
D. (i), (ii) and (iii)
