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.
Shekhar is drinking a cup of tea with his grandfather.
1
A cup of tea is been drunk by Shekhar with his grandfather.
2
A cup of tea is being drinking by Shekhar with his grandfather.
3
A cup of tea is being drunk by Shekhar with his grandfather.
4
A cup of tea are being drunk by Shekhar with his grandfather.