Well, you see, we have a duty to Muriel, our cook. Her mother was the old house keeper of Sotty [the deceased Hollywood star].
A、 .it's our honor to take care of Muriel.
B、.it's our desire to offer Muriel job opportunity.
C、 .it's our responsibility to keep Muriel company.
D、 .it's our obligation to share house work with Muriel.
【正确答案】：C
