Workability of concrete is directly proportional to
(i) time of transit
(ii) wate cement ratio
(iii) gradign of aggregate
(iv)stength of aggregate
(v) aggragate cement ratio

A

(iii), (iv), (v)

B

(i), (ii), (iv)

C

(ii), (iii), (v)

D

(ii), (iii)