The approximate date of the shipwreck could be decided from ______.A．the dates on the coin

The approximate date of the shipwreck could be decided from ______.

A．the dates on the coins found

B．the analysis of the age of the materials from which the ship was built

C．the scientifically-determined age of some of the cargo

D．a knowledge of the date of the building of the ship together with her known age