Answer:
I would say Inductive reasoning.
Step-by-step explanation:
Inductive reasoning is defined as "A method of reasoning in which a body of observations is synthesized to come up with a general principle." and this is exactly what the doctor did to come up with his diagnosis.
Hope this helps you out a bit.
I think the correct one is b but I’m not sure
Go to desmos.com and type in these equations
24 divide by two is 12
so x is 24