Select the option that expresses the given sentence in passive voice.
He must deliver pizza.

Correct option is C

The correct passive voice of the given sentence is  "Pizza must be delivered by him."
· Rule for conversion from Active to Passive Voice:
1. Identify the object of the active sentence (here: "pizza").
2. Change the object to the subject of the passive sentence.
3. Use the auxiliary verb from the active sentence (here: "must") with "be" and the past participle form of the verb ("delivered").
4. Retain the agent (if necessary) preceded by "by."
· Structure:
. Active voice: Subject + Modal Verb + Verb (Base Form) + Object.
. Passive voice: Object + Modal Verb + be + Verb (Past Participle) + by + Subject.
Example:
Active: She must complete the project.
Passive: The project must be completed by her.