A.〈%@ taglib prefix="c" uri="http：//java.sun.com/jsp/jstl/core" %〉
B.〈%@ taglib prefix="x" uri="http：//java.sun.com/jsp/jstl/xml" %〉
C.〈%@ taglib prefix="fmt" uri="http：//java.sun.com/jsp/jstl/fmt" %〉
D.〈%@ taglib prefix="sql" uri="http：//java.sun.com/jsp/jstl/sql" %〉