☁️My Answer☁️:
I would choose option C.) The writer wants to conceal the identity of the person who broke the jar.
✧My Explanation✧:
'The writer wishes to hide/conceal the identity of the individual who broke the jar,' is the best explanation or reason for changing the provided sentence to passive. The passive form of the phrase would transfer the attention from the subject to the object, emphasizing the action of 'breaking' and the shattered item, 'jar.' Thus, C is the correct answer.