The maximum amount of chlorides and sulphates should not be more than
[ A ] 0.15% and 4% by mass of cement respectively
[ B ] 4% and 0.15% by mass of cement respectively
[ C ] 0.30% and 2% by mass of cement respectively
[ D ] 2% and 0.30% by mass of cement respectively
[ A ] 0.15% and 4% by mass of cement respectively
[ B ] 4% and 0.15% by mass of cement respectively
[ C ] 0.30% and 2% by mass of cement respectively
[ D ] 2% and 0.30% by mass of cement respectively