Consider the oxides of group 14 elements $$SiO_2, GeO_2, SnO_2, PbO_2, CO$$ and $$GeO$$. The amphoteric oxides are

A

$$GeO, GeO_2$$

B

$$SiO_2, GeO_2$$

C

$$SnO_2, PbO_2$$

D

$$SnO_2, CO$$