The use of calcium supplementation to reduce risk of fractures? which of the responses is (are) correct?

1    is associated with poor compliance because of the need for sustained treatment

2    may be combined with vitamin D supplementation

3    consists of calcium lactate as it is the only salt that can be used for oral administration.

A    if 1, 2 and 3 are correct

B    if 1 and 2 only are correct

C    if 2 and 3 only are correct

D    if 1 only is correct

E    if 3 only is correct