Direction: In the following questions, a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive /Active Voice.
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Ratan is performing an experiment.
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- An experiment is performed by Ratan.
- An experiment is being performed by Ratan.
- An experiment was performed by Ratan.
- Experiments were performed by Ratan.