化学上采用C12的质量的（）作为测量一切分子的质量的单位。

A.1/3

B.1/4

C.1/12

D.1/18

Wes Smith, CFA, has been working toward the completion of a Master of Science in Finance. He has passed all the necessary courses and written the necessary thesis. He still must defend the thesis in one month. Smith’s thesis advisor assures him that he will pass the thesis defense. Smith has new business cards printed with "M.S. in Finance" after his name. This is a violation of:（）

A. none of the Standards if Smith does not make the cards public until after he defends his thesis and receives his degree.

B. Standard Ⅰ(C), Misrepresentation.

C. Standard Ⅱ (B), Market Manipulation.