`Ca^(2+)` ions play an important role in
(i) neuromuscular function
(ii) interneuronal transmission
(iii) cell membrane integrity
(iv) blood coagulation

Options

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

Answer

D

Explanation

`Ca^(2+)` ions are important in blood clotting, required to trigger the contraction of muscles and to maintain the regular beating of the heart.