Which component of the Toulmin Model of Argument answers the question, "How do you know that?"

Ariadne wants to use a question for her attention-getter, but

does not want an actual response. Ariadne should use a __________ question. Fill in the blanks with correct word

Improving your listening skills could include which of the following methods?

a. spending more time listening b. identifying poor habits c. knowing your agenda in communication interactions d. understanding conversational rules