In the United States at the time of World War II, (when) soldiers were screened (for military service) the army defined (a minimal level) of literacy as that (was normally achieved) in the fifth grade.

• A. when
• B. for military service
• C. a minimal level
• D. was normally achieved

A．fact that historians have overestimated the importance of the Puritans in the development of American culture
B．fact that early American culture was deeply influenced by the strong religious orientation of the colonists
C．extent to which Massachusetts and Connecticut served as cultural models for the other American colonies
D．extent to which colonial America resisted assimilating cultural patterns that were typically English

A．freemen had incentive to produce more
B．masters had greater incentive to work their workers harder
C．slaves never starved, no matter what they produced
D．productivity could go in only one direction