During her Q&A session, Deirdre does not have an answer for a question she is asked.

How should Deirdre respond?

a$.)$

Apologize for not having the answer.

b$.)$

Deflect the question by asking if anyone in the audience would like to answer it$.$

c$.)$

Ask for clarification.

d$.)$

Tell the questioner she does not have an answer but will get back to them with one.