The correct option will be: C.
<em><u>Explanation</u></em>
The repeating decimal given is: which means 2.1111111111..........
Suppose, the given number 2.1111111111.......... as
Here the repeating digit is 1 . First, we need to move the decimal point after the repeating digit. So we can do that by multiplying both sides by 10. Thus....
Now subtracting the above two equations , we will get.....
So, the given repeating decimal be expressed in a fraction as