In the following question, a sentence has been given in Active/Passive voice. Out of four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice. I saw the master conducting the orchestra.

• I saw that the orchestra was being conducted by the master.
• I saw the orchestra being conducted by the master.
• The master was seen conducting the orchestra by me.
• The master was conducting the orchestra and I saw that.