What is the topic sentence of the paragraph below, which comes from a communications textbook?
The context in which you communicate is important. As mentioned earlier, the context helps determine which messages are seen as appropriate and effective. Your social environment is the context of both your communication and your relationships. It is composed primarily of the people with whom you associate but includes nonhuman aspects, such as where you live and work, your house furnishings, your pets, and the like. In your social environment, you create meanings for people, objects, and other phenomena-meanings that distinguish these things from mere physical or biological description.
A. In your social environment, you create meanings for people, objects, and other phenomena.
B. The context in which you communicate is important.
C. [T]he context helps determine which messages are seen as appropriate and effective.
D. Your social environment is the context of both your communication and your relationships.
