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a. the vertical sum of the marginal revenue from each product is equal to marginal cost.
b. the horizontal sum of the marginal revenue from each product is equal to marginal cost.
c. the marginal revenue from each product is equal to the marginal cost of producing each product.
d. the marginal cost is equal to the corresponding price of each product.
I Agree with the majority
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that's A, I agree with you ___________________________________________
It's the1st option....Option A......
My Answer Is Option " A " ...
Option (A) ----------------------