Choose the option that is the passive form of the sentence.

Shyam saw Abhishek starting the car.

Abhishek was seen starting the car by Shyam.

The correct option that is the passive form of the sentence is Abhishek was seen starting the car by Shyam.

The other options are incorrect because:

• Abhishek can be seen starting the car by Shyam is in the passive voice, but the word order is incorrect. The correct word order for the passive voice is " [object] was/were [verb] by [subject]."
• Abhishek has seen Shyam starting the car is in the active voice.
• Abhishek was saw by Shyam starting the car is grammatically incorrect. The verb "to see" is followed by a direct object, but the phrase "was saw" is not a direct object.