Phosphorus: 1)is a Major Component with Calcium in Skeletal and Dental

Phosphorus:
1) is a major component with calcium in skeletal and dental tissue
2) when deficient, causes rickets in children and osteomalacia in adults
3) when deficient, symptoms include muscle weakness
4) is a component of nucleic acids

A) 1, 2, 3, 4
B) 1, 2, 3
C) 1, 3, 4
D) 1, 2, 4