Refer to the production function. The total product at 4 units equals ________ units

Using this consumption function, autonomous consumption is

A) $0. B) between $1 and $2 trillion. C) more than $2 trillion and less that $5 trillion. D) more than $5 trillion and less than $8 trillion. E) more than $8 trillion.

You choose to get a flu shot each fall and your roommate chooses not to get a flu shot. For your roommate, you getting a flu shot is a

A) positive externality. B) negative externality. C) transactions cost. D) property right.