Read the following excerpt from a student essay. How can the writer best improve his or her ideas and development?
Shade-grown coffee is better for the environment than coffee grown in full sun. Coffee naturally grows in shade. However, in the 1990s, farmers began cultivating hybrid coffee plants that grew in full sun because they produced higher yields. These sun-loving plants have harmed the environment in many ways. Now there are huge full-sun coffee plantations where small, shady farms once stood.
A. by including more background information on the plantations
B. by addressing an opposing point of view
C. by including evidence to support the claim
Identify the correct option from the choices provided and respond with the letter of the correct option.

C