Humanists believe that

A. love is an illusion.

B. life on earth is important in its own right.

C. humans and animals existed on the same level.

D. Shakespeare didn't actually write the plays we think he did.

Humanists believe that life on earth is important in its own right. The answer is letter C. Humanists is based on the principle humanism which focuses more on critical thinking and evidence rather than superstitious belief.