The correct statement that explains what happens when the president issues a pocket veto is:
Congress will adjourn within 10 days of the president receiving the bill. If the president does not sign the bill, the bill does not become a law because Congress will not have an opportunity to override the veto.
A pocket veto occurs when the president does not sign a bill into law within 10 days and Congress is not in session, effectively preventing the bill from becoming law without issuing a formal veto.