Correct option is D
The correct passive voice of the given sentence is "It is time for tea to be had."
Rules of conversion from active to passive voice:
1.
Active Voice Structure:
· "It is time to + Verb (base form)"
· "To have tea" → action to be performed.
2.
Passive Voice Structure:
· "It is time for + Object + to be + past participle form of the verb."
· "To have tea" → "For tea to be had."
Example:
·
Active: It is time to complete the assignment.
·
Passive: It is time for the assignment to be completed.
Why other options are incorrect:
·
(a) Tea is to be taken by it. → Incorrect as it changes the meaning.
·
(b) Tea is to be had. → Incomplete sentence structure.
·
(c) Time must be taken to prepare tea. → Changes the original meaning.