Archaeologists Conduct Excavations and Recover Artifacts from Where They Were

Archaeologists conduct excavations and recover artifacts from where they were buried; thus, by its very nature, archaeological excavation is

A) destructive -- the context of the artifacts is lost.
B) tiring -- archaeologists must work very hard during excavations.
C) profitable -- many of the artifacts recovered are priceless.
D) something that amateurs can easily master.
E) something that is usually conducted as quickly as possible.