- AA few borrowers had given the library an address at which a reminder could not be delivered
- BThe branch holds more titles than any other branch in the town
- CIn the same year the library began treating a book whose loan is extended over the telephone as returned on time instead of as overdue, and such extensions by themselves account for the whole of the fifth
- DPosting the reminders costs the library a small sum for each borrower
Step-by-Step Solution
What changed is the rule for entering a return, not the day on which books come back. The books once counted as overdue are still coming back late; they are merely filed differently. Since the reclassification alone accounts for the entire fall, nothing is left for the reminders to explain. Undeliverable addresses, the size of the stock and the cost of postage do not bear on how a return is recorded.
Answer: C) In the same year the library began treating a book whose loan is extended over the telephone as returned on time instead of as overdue, and such extensions by themselves account for the whole of the fifth