What happens when a president does not return a bil in 10 days and what is the exception to that rule?

United States. A pocket veto occurs when a bill fails to become law because The president does not sign the bill and cannot return the bill to Congress within a 10-day period because Congress is not in session. Congress can override the veto by a two-third vote of both chambers, whereupon the bill becomes law. Hope this helps

To be honest i thinks its between the first answer and the third answer