Change the narration: Kiran said to Sana, “let us go out for a walk”?

A. Kiran told Sana to go out for a walk.
B. Kiran told Sana that they must go out for a walk.
C. Kiran urged Sana that they must go out for a walk.
D. Kiran proposed to Sana that they should go out for a walk.