The purpose of the general warm up is
(a) to establish the optimal relationship between the forthcoming movements
(b) return the body to its resting state
(c) increase the functional potential of the body as a whole
(d) ensure exercise effectiveness (d) all of these

(A) to establish the optimal relationship between the forthcoming movements

Explanation:

Warm-up is so essential and beneficial for those who exercise, that it is indispensable to incorporate it into our physical activities. It prevents and prevents serious injuries, also acting against body aches.  

The main purpose of general warm-up is to prepare the body for sport, whether in training, in competition or at leisure. It aims to obtain the ideal psychic and physical state, the preparation for movements and mainly to prevent injuries.