If I accidentally forget to cite someone, it isn't plagiarism

When giving a speech about stem cell research, the speaker must define terms that are new to the audience that will be used throughout the speech. Defining the terms is part of the _____

A. analogy B. illustration C. exposition D. specific instance

All of the following are ways to weaken and violate our own boundaries EXCEPT

a. pretending to agree when we disagree. b. concealing our true feelings. c. engaging in an activity that we really want to do. d. declining to join an activity we really want to. e. doing too much for others.