Rival is Consumption
Yes No
Excludable Yes A B
No C D

Emma's use of good x does not affect anyone else's use of good x. Neither Emma nor anyone else can be prevented from using the good. Good x is an example of the type of good that belongs in:________

a. Box D, which represents public goods.
b. Box B, which represents common resources.
c. Box C, which represents common resources.
d. Box A, which represents private goods.