How many prime numbers are between 51/13 and 89/9?  Choose the most appropriate option:
A) 0  B) 1  C) 2  D) 3  E) 4
51/13= 4-   89/9= 10-   Prime numbers between 4 and 10 are 5 and 7   - sign signifies that the number is marginally less .   Answer 2
<result>C</result>
How many prime numbers are between 51/13 and 89/9?