Pick up the correct statement from the following:
(A) Cement should be mixed for at least one minute
(B) 10% of water is placed in the rotating drum before adding dry material
(C) 10% of water is added after placing the other ingredients in the drum
(D) All the above
(A) Cement should be mixed for at least one minute
(B) 10% of water is placed in the rotating drum before adding dry material
(C) 10% of water is added after placing the other ingredients in the drum
(D) All the above