Precocious puberty is sexual development before the age of 8

Regarding the Müller­Lyer illusion, which of the following statements is FALSE?

a. This illusion can be explained by our experience with the edges and corners of rooms and buildings. b. This illusion can be explained by size-distance relationships. c. The San bushmen, who live in a "round" culture, experience this illusion in exactly the same way as Americans, who live in a "square" culture. d. Cues that suggest a three-dimensional space alter the perception of this two-dimensional design.

Evolutionary theorists believe that emotions evolved

a. before thought. b. after thought. c. simultaneously with thought. d. as a control on thought.