Solve the Problem $\$ 400$ , Each Stereo System Sells For $\$ 1900$

Multiple Choice

Solve the problem.
-An electronics store stocks VCRs, stereo systems, and television sets. They have limited storage space and can stock a total of at most 80 of these three machines. They know from past experience that they should stock twice as many VCRs as stereo systems and at least 20 television sets. If each VCR sells for $\$ 400$ , each stereo system sells for $\$ 1900$ , and each television set sells for $\$ 600$ , how many of each should be stocked and sold for maximum revenues?

A) 36 VCRs, 18 stereo systems, 26 television sets
B) 28 VCRs, 14 stereo systems, 38 television sets
C) 30 VCRs, 30 stereo systems, 20 television sets
D) 40 VCRs, 20 stereo systems, 20 television sets