In the following questions, a sentence has been given in Direct/Indirect form. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct form.
Gopan said to me, “Can you do these sums for me?”

• Gopan asked me if I could do those sums for him.

• Gopan asked me if I can do those sums for him.

• Gopan asked me if I can do these sums for him.

• Gopan asked me if I can do these sums for him.