Dormitories range from two to six stories in height. If a dormitory room is above the second floor, it has a fire escape. If the statements above are true, which of the following must also be true?
A. Second-floor dormitory rooms do not have fire escapes.
B. Third-floor dormitory rooms do not have fire escapes.
C. Only dormitory rooms above the second floor have fire escapes.
D. Fourth-floor dormitory rooms have fire escapes.
E. Some two-story dormitories do not have fire escapes.
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Explanation: All the dormitories that are above second floor has a fire escape. So Fourth floor dormitory must have a fire escape.
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