Anyone special in medical law and ethics?

Which of the following is not an internal factor of decision making? a. ethics b. emotions c. peer pressure d. attitude

When a person undergoes root canal treatment or another endodontic treatment: [select all that apply] a.) the inside of the tooth is carefully cleaned and disinfected. b.) air is forced into the canal to stop bleeding. c.) the inflamed/infected pulp is removed. d.) the inside of the tooth is filled and sealed with a rubber-like material called gutta-percha

What condition is most likely present when a normal p wave is negatively deflected?