Identify each of the following goods as a nonexcludable public good, an excludable public good, or a private good:

a. A composition notebook used for writing

b. A Shakespearean play performed in a summer theater

c. An apple

d. A telephone in service

e. Sunshine

Give an example, other than a movie in a movie theater or a play in a theater, of a good that is nonrivalrous and excludable.