Find the next term in the sequence:

1/3,2/9,3/27, ...

A. 4/36

B. 4/54

C. 4/81

D. 4/109

First, you would have to look for a pattern. As you can see, the numerators are increasing by one. In the denominator, the numbers are being multiplied by three.

Now, let's apply this rule to the last fraction. The denominator multiplied by three would be 81.

Therefore, the answer is C. 4/81