【单选题】听力原文: Many things have been forgotten because we do not have any written account of them. Sometimes men did keep a record of the most important happenings in their country, but often it was destroyed ...
A.
Because there was nothing worth being written down at that time.
B.
Because the people there ignored the importance of keeping a record.
C.
Because the written records were perhaps destroyed by a fire.
D.
Because the people there had not known how to write.