For preparing ordinary concrete, the quantity of water used, is
(A) 5% by weight of aggregates plus 20% of weight of cement
(B) 10% by weight of aggregates plus 10% of weight of cement
(C) 5% by weight of aggregates plus 30% of weight of cement
(D) 30% by weight of aggregates plus 10% of weight of cement
(A) 5% by weight of aggregates plus 20% of weight of cement
(B) 10% by weight of aggregates plus 10% of weight of cement
(C) 5% by weight of aggregates plus 30% of weight of cement
(D) 30% by weight of aggregates plus 10% of weight of cement