(Why should pet owners come to you instead of another vet? What is your specialty or what do you hang your hat on as a practice?)
(Your regular clientele or a new demographic? In addition to informing content, this question also helps determine which kind of marketing pieces you should focus on.)
(Buy something, make an appointment, click a link, be informed, get involved? Also helps determine your CTA for a piece. Calling might be better in some cases, going to a URL in others, etc.)