Correct option is B
The correct passive voice of the given sentence is (b).
Rules of Conversion:
· Tense:
Present Perfect (have/has + V3)
· Passive:
has/have been + V3
· Subject ↔ Object swap
·
Structure:
· Active Voice: Subject + has/have + V3 + object
· Passive Voice: Object + has/have been + V3 + by + subject
Correct Passive Form:
That man has been chosen by the citizens as their leader.
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Grammar Booster:
Use
“has been” with singular subjects and
“have been” with plurals in present perfect passive.