Most scientists don't used the word law because that implies it is infallible but generally scientific laws and theories are used interchangeably so true.
Knowing each other mentally having those sparks of eacother
I think that the answer is c. Because factories and fire is putting carbon into the atmosphere.
The feature is called Evolution based on hypothesis. Charles Darwin's Hunting hypothesis was that Bipedalism freed the hands for making tools. Rodman and McHenry's patchy Forest Hypothesis, bipedalism was ore efficient than quadrupedalism such that forests diminished and food resources also became scattered. Also not valid because bipedalism evolved in a forest environment.
Owen Lovejoy's Provisioning Hypothesis that males assist females more efficiently in procuring food; the need for food hypo, Birth spacing would be reduced.
