Combine both the sentences below with a relative pronoun.
That is my friend Gautam. Gautam has opened a new showroom.
1
That is my friend Gautam who has opened a new showroom.
2
My friend Gautam has opened a new showroom.
3
It is my friend Gautam that has opened a new showroom.
4
A new showroom has been opened by Gautam that is my friend.