I guess the paragraph break should be after the B) Ellen asked and "How are you feeling?" and Ellen said. Because while reading this dialog, reader need a pause between the information which these characters exchange. In my opinion, there must be graphical and emotional space between their introduction and next action that hasn't revealed yet. Also, I'd choose B to make this conversation looks alive.
Hi the answer is C the reader learns the thoughts and motivations of all the characters
1. Likely a vet - as they take care of animals, especially those in pain.
2. Vague, but maybe a travel journalist as they are required to move around to learn more.
3. Architect - work on designing buildings, which fits the criteria.
4. Likely a lawyer because they are easier for rich clients to get, and they are of course in court fighting for their clients.
