Directions:
Read the each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is No Error. (Ignore the errors of punctuation, if any).

Question:
Solve as per the direction given above:

Option A):
the basic objectives of the work.
Option B):
he still does not understand.
Option C):
for as many as fifteen years.
Option D):
No error.
Option E):
Even after worked in the office.

Correct Answer is Option E):
Even after worked in the office.

Explanation:
Even after working in the office.