HOW MANY PRESIDENTS ELECTED IN YEARS ENDING IN ZERO SINCE 1840 HAV...

64. - DE THI THU DAI HOC MON ANH VA DAP AN
DE THI THU DAI HOC MON ANH VA DAP AN
64. How many presidents elected in years ending in zero since 1840 have died in office? A. 7 B. 5 C. 4 D. 3