Answer:
A. 0.1333333
B. 

Explanation:
We are asked to find the decimal equivalent to the fraction 
 .
. 
Upon dividing 2 by 15 we will get,

Since 3 is repeating, so we can represent our answer as:

We can see that digit 3 is repeating itself infinitely, therefore, the number of digits that should be over-lined is one that is 3.