Correct Answer:
Option C - In passive voice, the structure of the sentence of a Past Indefinite is -
Sub + was/were + V³ + [by] object
The window was broken.
Hence, option (c) is correct.
C. In passive voice, the structure of the sentence of a Past Indefinite is -
Sub + was/were + V³ + [by] object
The window was broken.
Hence, option (c) is correct.