The Long Run Refers to a Time Period

Multiple Choice

The long run refers to a time period

A) during which a firm is able to purchase all of its inputs, including its plant and equipment.
B) long enough for a firm to vary all of its inputs, to adopt new technology, and change the size of its physical plant.
C) long enough for a firm to pay all of its creditors in full.
D) long enough for a firm to change the use of its variable inputs.