Answer: d. should produce more in the Texas factory and less in the Michigan factory
Step-by-step explanation:
A company stands to benefit more if it produces at less cost because then it can produce more goods or rather make more profit.
This company is is spending $3 to make an additional unit in Texas than in Michigan where it is spending $5.
It is spending less in Texas and should therefore shift more production to Texas so that it can spend even less when producing and therefore become more profitable.