Using parallel phrases or a series of words is used in public speaking.

a. an example of rhetorical language
b. a nonverbal strategy
c. a prewriting strategy
d. a verbal strategy

B). A non-verbal strategy.

Explanation:

As per the question, the use of parallel phrases or a series of words would exemplify a 'non-verbal' strategy in public speaking as it emphasizes on the pitch and accent in which the message or idea to be conveyed to the audience and enhance its efficacy. The usage of parallel phrases would assist in maintaining the flow and display the required body language or gestures while delivering the content before the audience. Such a strategy does not involve the words but the manner in which it is being conveyed to ensure efficacy and worth of the content before the audience. Thus, option B is the correct answer.

jefferson introduced the idea that one does not change a government for "light" causes because he wanted to emphasize the seriousness of colonists' reasons for declaring independence.