Britain occupied Java during the Napoleonic Wars. Both the British and later the Dutch tried to centralize and reform Java’s administration. The Dutch wavered between opening the area to individual enterprise and reverting to a monopoly system.

A．revealing his low opinion of mankind
B．poking fun at geneticists
C．expressing his doubts about the possibility of breeding a super-ape
D．presenting a reasonable theory in a humorous tone

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