Derrick thinks his grandfather is very boring when he tells stories about being in the vietnam war. derrick doesn't want to be rude, so he nods his head and says "uh huh" and "wow" a lot. his grandfather is hurt by derrick's as he can tell derrick is not truly listening.

Pseudolistening is the correct answer.

"Pseudo" comes from the Greek that means "not genuine or not real". Pseudolistening is a type of non-listening in which the listener appears to be paying attention to the speaker when he/she is actually not. Derrick's behavior is a good example of pseudolistening because he wants his grandfather to believe he is listening to him when in reality he is not.

i honestly have no idea