Correct option is A
Explanation:
The correct passive form of "Ram can not do it now" is "It can not be done by Ram now," shifting the object "it" into the subject position.
Information Booster:
Passive voice rearranges focus from the "doer" to the action itself, suitable for emphasis or formality. Modal verbs like "can" follow passive: can + be + past participle.
Additional Knowledge:
(2), (3), and (4) do not use correct grammatical structure and distort meaning.