Select the correct passive form of the given sentence.
My mother is watching a new serial about the life of Dr. Ambedkar.
1
A new serial about the life of Dr. Ambedkar is being watched by my mother.
2
A new serial about the life of Dr. Ambedkar was being watched by my mother.
3
A new serial about the life of Dr. Ambedkar is watched by my mother.
4
A new serial about the life of Dr. Ambedkar will be watched by my mother.