Question

I and my colleague / have carefully considered the important issues raised by / the report which you sent me and / we have decided to take the following action.
A.I and my colleague
B.have carefully considered the important issues rai
C.the report which you sent me and
D.we have decided to take the following

Answer 1

I and my colleague have carefully considered the important issues raised by the report which you sent me and we have decided to take the following action.

Answer 2

Answer:

A. I and my colleague.

Explanation:

See, English is a polite language. So the sentence must be " My colleague and I / have carefully considered the important issues raised by / the report which you sent me and / we have decided to take the following action."

Actually both are grammatically correct. The difference between "I and my friends" and "my friends and I" is purely a matter of courtesy.

Hope it might be useful!!!!