On a Graph We Draw a Consumer's Budget Constraint, Measuring

Multiple Choice

On a graph we draw a consumer's budget constraint, measuring the number of pineapples on the horizontal axis and the number of pencils on the vertical axis. If the slope of the budget constraint is -6, then

A) a pencil costs six times as much as a pineapple.
B) the opportunity cost of a pineapple is one-sixth of a pencil.
C) the opportunity cost of a pencil is six pineapples.
D) a pineapple costs six times as much as a pencil.