D. Antivirals, hope it helps
Market Research. :) Hint "market". ^^ Hope I helped out ^_^
This behavior helps Betty grow in knowledge and understanding, which benifits her greatly. By answering all of her questions she will learn more, become more curious, and expand her knowdlege greatly compared to if they did not answer her questions.
Answer:
There could be two options:
Assessing the blood supply to the tooth or assesing the sensory supply.
