错， 50个州用real ID但只有五个州可以当公民证明

All 

50 U.S. states, the District of Columbia, and five U.S. territories are currently compliant with the REAL ID Act and are issuing compliant licenses and ID cards. 

While all REAL IDs require proof of lawful presence, only 5 states currently issue a specific version—the Enhanced Driver’s License (EDL)—that serves as definitive proof of U.S. citizenship for international land and sea travel.