Which of the Following Is an Example of a Retailing

Which of the following is an example of a retailing activity?

A) Pamela peddles fresh vegetables at the Winchester flea market.
B) Cynthia markets silk flowers for cemeteries to customers who visit her beauty salon.
C) Chenoa vends hot dogs at a baseball park.
D) Sandra sells software for surfing the Internet to students.
E) All of the above are examples of retailing activities.