Choose the correct active voice form from the given options.
The laptop may not be bought by her.

Correct option is C

The correct active/passive voice of the given sentence is (c).
Explanation: Passive structure with a modal: may + not + be + V³ converts to active modal + not + base verb. Swap the object and subject: the laptop (object) ↔ she (subject). Keep the same modal ( may), polarity ( not), and main verb in base form ( buy).
Structure:
· Passive (with modal): Object+ modal + not + be + past participle (+ by + agent)
· The laptop may not be bought by her.
· Active (with modal): Agent + modal + not + base verb + object
· She may not buy the laptop.
· Why others are incorrect:
· (a) Changes the modal may → might (tense/degree shift).
· (b) Changes meaning and time ( should not have bought = past perfect-like inference/criticism).
· (d) Changes aspect/time ( may not have bought = possibility about a past event).
· Example:
· Passive: The work must be completed by the team. → Active: The team must complete the work.