求助lsat-25-4-8

hwlxm0227

1) Early in the development of a new product line, the critical resource is talent. New marketing ventures require a degree of managerial skill disproportionate to their short-term revenue prospects. Usually, however, talented managers are assigned only to established high-revenue product lines and, as a result, most new marketing ventures fail. Contrary to current practice, the best managers in a company should be assigned to development projects.

Which one of the following, if true, most
            strengthens
        the author’s argument?

(A) On average, new ventures under the direction of managers at executive level survive no longer than those managed by lower-ranking managers.

(B) For most established companies, the development of new product lines is a relatively small part of the company’s total expenditure.

(C) The more talented a manager is, the less likely he or she is to be interested in undertaking the development of a new product line.

(D) The current revenue and profitability of an established product line can be maintained even if the company’s best managers are assigned elsewhere.（D）

(E) Early short-term revenue prospects of a new product line are usually a good predictor of how successful a product line will ultimately be.

why D not E? thank you!

dphxmg

E seems to undermine the author's argument.