State industries are notoriously poor "incubator" for the development of profit-focused, entrepreneurial persons who may leave the firm to set up their own businesses. This statement is an argument in favor of:

Stanley Engerman's (1971) work on the economic impact of the Civil War (1861–1865) refuted a view sometimes called the Beard-Hacker thesis. This thesis holds that

(a) the Civil War (1861–1865) held back the ongoing processes of industrialization. (b) the Civil War (1861–1865) accelerated the ongoing processes of industrialization. (c) the Civil War (1861–1865)'s demands for manufactured goods increased American long-term dependency on foreign trade. (d) the Civil War (1861–1865) was more disruptive of the "westward movement" than it was of ongoing processes of industrialization.

The Sweezy model of oligopoly reveals that:

A. perfectly competitive prices can arise in markets with only a few firms. B. capacity constraints are not important in determining market performance. C. changes in marginal cost may not affect prices. D. All of the statements associated with this question are correct.