The correct answer for that question would be definitely A. C. & D. It tells you that mateo is trying to break away from the drug, and since this question ask you to choose three out of the four, and the second option states "B. Use the Drug" this will not make sense, and now you are left with three options which sound more logically correct.
:Examine animals to diagnose their health problems
:Diagnose and treat animals for medical conditions
:Treat and dress wounds
I think the correct answer would be second opinions. Insurance companies would recommend their members to go for second opinions so as to make sure the operation is worth it for them to spend less and wisely. Hope this answers the question.