Including too much information in a summary is a mistake people make while writing summaries, since summaries are supposed to be short however have a meaningful message, and include all the important information.
Hope this helped! :D
"She looks umbrage at his remarks."
Earth is the only planet out of the two that can support life. Mars can not. Both Earth and Mars are both planets. Mars is hotter than Earth. Earth has a moon. Both planets are made up of rock. They differ in colours.
C.
It seems to be the most fitting answer.