Chomsky called the neural "prewiring" that facilitates a child's learning of grammar the _____________

According to the authors, it is not easy to understand and explain other people's behaviour because

A) other people work to hide their motivations and intentions. B) we only have access to observable behaviours. C) we are biased by our own motivations. D) social behaviour is often random. E) social behaviour is often performed without conscious awareness.

The arithmetic mean is an average that is calculated by adding up a set of quantities and dividing the sum by the total number of quantities in the set

Indicate whether this statement is true or false.