The number of P $$-$$ O $$-$$ P bonds in H$$_4$$P$$_2$$O$$_7$$, (HPO$$_3$$)$$_3$$, and P$$_4$$O$$_{10}$$ are respectively

A

$$0, 3, 6$$

B

$$0, 3, 4$$

C

$$1, 2, 4$$

D

$$1, 3, 6$$