What kind of art did Russia ban, and why?

The birth of Soviet Art was preceded throughout the 1920s by an era of intense ideological competition between different artistic groupings each striving to ensure their own views would have priority in determining the forms and directions in which Soviet Art was to develop, seeking to occupy key posts in cultural institutions and to win the favour and support of the authorities.

that's what i found i hope it helps you

and if it's okay I accept breinlies

a is correct

hope this let me know if it is right

it refers to race, i am pretty sure this was a popular term in nazi germany or something.