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

Switch off the television.

Let the television be switched off.

The correct option that is the passive form of the sentence is Let the television be switched off.

The other options are incorrect because:

• May I switch off the television? is in the interrogative mood, while the question asks for the passive voice.
• Let the television being switch off is grammatically incorrect. The verb "to switch off" is followed by a direct object, but the phrase "being switch off" is not a direct object.
• Can you switch off the television? is in the active voice.