I believe it’s a, good luck:)
The answer would be b. Medical terminology because that is the basics and that’s what they start you with in a beginner medical class.
Active listing is important so you can know what they are saying. Without active listening than you may forget things. Also the four rules of active listening are too look at the person (eye contact) listen too them. And I do not know the rest. Sorry, but that's the best I can do :)
OD. All of the above, I believe.