Answer:
In marginal analysis, when comparing costs and benefits, an optimal choice is found when MB≥MC
Explanation:
As per marginal analysis, optimal decision-making involves taking actions when the marginal benefit exceeds the marginal cost. (i.e. MB>=MC)
Marginal cost can be defined as the change in the Total cost when producing an additional unit of output.
so the answer is (a) MB≥MC
