The more time we spend with someone, generally speaking the more we like someone

Which of the following guidelines does the book recommend in regard to the level of abstraction of

language used in a speech? A) Use high-level abstraction to put pictures in your audience's head. B) Consistently use low-level abstraction to make your main points clear. C) Vary the levels of abstraction. D) Use high-level abstraction more than low-level abstraction.

For college students, _____ is the primary communication activity

Fill in the blank(s) with correct word.