In the Section "Investigating Life: Did a Myosin Gene Mutation

Multiple Choice

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",what did the researchers propose as the selective advantage for a smaller temporalis muscle?

A) Humans could eat softer foods.
B) The brain could become larger.
C) It would take less energy to move the muscle.
D) It would enable speech.
E) It forced humans to develop tools to cook their food.