What is the least obtrusive transition?

The less well-known the speaker, the shorter the introduction should be

Indicate whether the statement is true or false

Stroke patients may gesture more when they attempt to name or label objects. This illustrates that

a. gestures are not necessary for effective communication. b. nonverbal communication is culturally universal. c. gestures may help people to retrieve language. d. people only gesture to communicate information. e. None of the above