Select the correct passive form of the given sentence.

They are laying new telephone cables in our colony.

New telephone cables are being laid in our colony.

The correct passive form of the given sentence is:

New telephone cables are being laid in our colony.

Explanation:

• New telephone cables are being laid in our colony.: This passive form correctly uses the present continuous tense to reflect the ongoing action of laying new telephone cables in the colony.
• New telephone cables were laid in our colony.: This passive form uses the simple past tense, which doesn't match the original sentence's present tense.
• New telephone cables were being laid in our colony.: This passive form uses the past continuous tense, which also doesn't match the original sentence's present tense.
• New telephone cables will be laid in our colony.: This passive form uses the future tense, which doesn't match the original sentence's present tense.