Let f(x)=\sum_{k=2}^{10}(\lfloor k x\rfloor-k\lfloor x\rfloor), where \lfloor r\rfloor denotes the greatest integer less than or equal to r. How many distinct values does f(x) assume for x \geq 0 ?

**Answer Choices**

A. 32

B. 36

C. 45

D. 46

E. infinitely many