Solve the problem.A doctor has told a sick patient to take vitamin pills. The patient needs at least 36 units of vitamin A, at least 8 units of vitamin B, and at least 25 units of vitamin C. The red vitamin pills cost 
each and contain 8 units of A, 1 unit of B, and 2 units of C. The blue vitamin pills cost 
each and contain 2 units of A, 1 unit of B, and 5 units of C. How many pills should the patient take each day to minimize costs?
A. 5 red, 3 blue
B. 3 red, 5 blue
C. 6 red, 2 blue
D. 8 red, 0 blue
Answer: A
Mathematics
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