Choose the most appropriate option to change the voice (active/passive) form of the given sentence.
An apple carries about 100 million useful bacteria.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. About 100 million useful bacteria are carried by an apple.
The sentence is in the active form of simple present tense. The structures for active/passive voices are:
Active: Subject + verb (Ist form) + object.
Passive: Object + is/am/are + verb (IIIrd form) + by + subject.
Going by the above rules, the correct option is 4.
As the chosen option follows the given rule it will be correct.