Correct Answer: May success be achieved by you in all your endeavours.

Solution : The correct choice is the third option.

Explanation:
In a passive voice construction, the subject of the sentence receives the action, and the focus is on the action rather than the doer.
The verb "achieve" becomes "be achieved" (to be + past participle).
The subject "you" becomes the agent in the passive voice construction and is placed at the end of the sentence with "by you."
The passive construction shifts the focus from the doer (you) to the action (success being achieved).

Therefore, the passive voice would be: May success be achieved by you in all your endeavours.