A competitive (or persuasive) ad reinforces previous knowledge of a product.

a. assures current users they made the right choice.
b. shows one brand's strengths relative to those of competitors.
c. tells people what a product is, what it can do, and where it can be found.
d. promotes a specific brand's features and benefits.

As a result of a labeling mistake at the chemical factory, a farmer accidentally sprays weedkiller rather than fertilizer on half her land. as a result, she loses half of her productive farmland. if the property of diminishing returns applies to all factors of production, she should expect to seea. a decrease in the marginal productivity of her remaining land and an increase in the marginal productivity of her labor. b. an increase in the marginal productivity of her remaining land and an increase in the marginal productivity of her labor. c. an increase in the marginal productivity of her remaining land and a decrease in the marginal productivity of her labor. d. a decrease in the marginal productivity of her remaining land and a decrease in the marginal productivity of her labor.