Select the option that expresses the given sentence in indirect speech.
My friend said to me, “Do you know the recipe of mango ice-cream?”
1
My friend asked me that I knew the recipe of mango ice-cream.
2
My friend asked me if I know the recipe of mango ice-cream.
3
My friend asked me if I knew the recipe of mango ice-cream.
4
My friend asked me that I know the recipe of mango ice-cream.