The option(s) with only amphoteric oxides is(are)

A

$$Cr_{2}O_{3},BeO,SnO,SnO_{2}$$

B

$$Cr_{2}O_{3},CrO,SnO,PbO$$

C

$$NO,B_{2}O_{3},PbO,SnO_{2}$$

D

$$ZnO,Al_{2}O_{3},PbO,PbO_{2}$$