Toward the End of the Archean Eon

Multiple Choice

Toward the end of the Archean Eon,

A) the first abundant shelly organisms appeared in the fossil record.
B) the Earth's interior was so hot that a solid outer crust,if present,was likely being extensively remelted.
C) stable continental interiors,termed cratons,first formed.
D) the dinosaurs appeared and came to dominate large-scale terrestrial life.