I said to my friend, "Good Morning. Let us go for a walk today."

A

I told good morning to my friend, and asked to go for a walk that day.

B

I wished my friend good morning and proposed that we should go for a walk that day.

C

I wished my friend good morning and proposed that they should go for a walk that day.

D

I told good morning to my friend and suggested to go for a walk today.