The motivation of rapists is now (acknowledged to) be a more complex matter (than being) formerly believed; it (has come) to be widely accepted that rape is not (necessarily) the result of sexual desire.

• A. acknowledged to
• B. than being
• C. has come
• D. necessarily

A．refuting a claim about the influence of Puritan culture on the early American South
B．refuting a thesis about the distinctiveness of the culture of the early American South
C．refuting the two premises that underlie Davis’ discussion of the culture of the American
D．challenging the hypothesis that early American culture was homogeneous in nature

A．conducted their research at approximately the same time
B．sought to manipulate the sex ratios of some of the animals they studied
C．sought an explanation of why certain sex ratios exist and remain stable
D．studied reproduction in the same animal species