单项选择题
Which of the following statement is the superior appraisal?
A．I strive to add creativity to all my projects, so that I can make them more interesting and accomplish the work on time with enthusiasm.
B．Danny is regular at work with a great attendance track record.
C．Danny always tries and maintains a cool and neutral manner during challenging times, and attempts to motivate us to keep up our level of enthusiasm during such times.
D．Danny defines, delegates, and directs work in a flexible manner.
是
在
上的原函数，则