They say that the earth is round.
A. It has been said that the earth is round.
B. That the earth is round is said by them.
C. It is said that the earth is round.
D. It was said that the earth was round.
Answer: Option C
Solution (By Examveda Team)
It is said that the earth is round.Given sentence is in simple present tense and it is in active voice.
Rule :
Subject + (is/am/are) + V3 + Other agents

Why not option 2nd?