For preparing a test-specimen, it is necessary
(A) To mix cement and fine aggregate by dry hand
(B) To mix coarse aggregates
(C) To mix water to the cement, fine aggregates and coarse aggregates
(D) All the above
(A) To mix cement and fine aggregate by dry hand
(B) To mix coarse aggregates
(C) To mix water to the cement, fine aggregates and coarse aggregates
(D) All the above