D:Medical History because you need to know pets background to properly treat it
DNA..........is the correct answer
Novice, apprentice, master, mentor. Student examples will vary, but should follow the model.
Example : Driving a car
S1 - take a class, have someone teach you about the parts of a car, traffic laws etc.
S2 - practice driving with parent/teacher - learners permit
S3 - drive on own, accident free, follow all traffic laws - No tickets or accidents
S4 - teach someone else how to drive
