In the sequence of fractions \frac11,\frac21,\frac12,\frac31,\frac22,\frac13,\frac41,\frac32,\frac23,\frac14,\frac51,\dots, fractions equivalent to any given fraction occur many times. For example, fractions equivalent to \frac12 occur for the first two times in positions 3 and 14. In which position is the fifth occurrence of a fraction equivalent to \frac37 ?

**Answer Choices**

A. 1207

B. 1208

C. 1209

D. 1210

E. 1211