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."
This accurately describes the pocket veto situation, where if Congress adjourns and the president does not sign the bill within 10 days, the bill fails to become law, and Congress cannot override the veto.