Researchers conducted breeding studies with two species of mice. Species A was monogamous, while Species B was not.Supporters of the competing parental interest theory hypothesized that the monogamous species was unlikely to have active imprinted genes (since the fathers would have the same genetic stake in all the offspring born). Which of the following experimental results would they expect？

A. When females from Species A were bred with males from Species B, the resulting offspring were extremely small.
B. When females from Species A were bred with males from Species B, the resulting offspring were extremely large.
C. When females from Species B were bred with males from Species A, the resulting offspring were extremely large.
D. The offspring of Species B mice were consistently smaller than the off-spring of Species A mice.