For Questions 9 and 10, select one entry from the corresponding column of choices for each blank. Fill all blanks in the way that best completes the text.

According to color psychologists, certain hues tend to reflect particular personality （）; violet, for example, indicates a tendency towards mysticism and intuition, while brown suggests an uncomfortable and aimless character.

A．African dogs do not have owners, whereas American dogs do.
B．African dogs undergo intense behavioral training, while American dogs remain untrained.
C．African dogs learn to respect their owners, but American dogs cannot be disciplined.
D．African dogs retain more independence from their owners than do American dogs.
E．African dogs are more dominant over their owners than are American dogs.

A. arduous
B. ambiguous
C. involuntary
D. eloquent
E. overt
F. ambitious