What 2 statements below correctly describe what happens when Calcium bonds with Phosphorous. Choose the 2 correct statements.

a
Calcium is gaining electrons, so it is reduced.
b
Calcium is losing electrons, so it is oxidized.
c
Phosphorous is gaining electrons, so it is reduced.
d
Phosphorous is losing electrons, so it is oxidized.

a

Calcium is gaining electrons, so it is reduced.

d
Phosphorous is losing electrons, so it is oxidized.