He has read four plays (1)/ written by Shakespeare (2)/ by the end of his vacation. (3)/ No error (4)

Options

A. 1. He has read four plays
B. 2. written by Shakespeare
C. 3. by the end of his vacation
D. 4. No error

Answer

1

Explanation

had read will replace has read -because the action took place in the past and the action is complete.
Hence, He had read four plays is the right usage