In the following questions,some of the sentences has errors and some are correct.Find out which part of a sentence has an error. If a sentences is free from errors,your answer is (d).
`("He served as President")/a` `("of the Lions club")/b` `("since fifteen years")/c` `("No error")/d`

Answer

3

Explanation

for will replace since because
for (Prep.) is used for showing a length of time since (Prep.) is used for showing a past time until a later time/until now
Look at the examples given below :
We.ve been living here for fifteen years. (still living) We.ve lived here for fifteen years. (had lived) Hence, for fifteen years is the right usage.