Why Were So Many Egyptian Records Lost and So Much

Why were so many Egyptian records lost and so much of its history only know through carved stone?

A) Flooding destroyed records each year.
B) Tablets from the area broke down easily because of the amount of sand in the clay.
C) Records were destroyed as new pharaohs ascended into power.
D) Records written on easily decomposable papyrus were lost.
E) Tombs holding records were too damp.