Which sentence below contains an incorrect verb form?

A.
Even today, some people believe that stars have something to say.
B.
In fact, on a scientific level, stars are actually the light that remains from millions of years ago.
C.
The idea that the future can be predicted in the stars stem from ancient beliefs.
D.
The stars have burned out millions of years ago, but it takes their light that long to reach Earth.

C.

The idea that the future can be predicted in the stars stem from ancient beliefs.