ECAT Engineering Exams Quizzes MCQs Quizzes ECAT Engineering Entry Test 2017 English Active and Passive Voice 3

Question:
He wrote a letter

Option A):
A letter has been written by him
Option B):
A letter had been written by him
Option C):
A letter was written by him
Option D):
A letter is written by him

Correct Answer is Option C):
A letter was written by him