Why Don't We Find Rocks with Ages Between 4

Multiple Choice

Why don't we find rocks with ages between 4.03 and 4.57 Ga in the Earth's crust?

A) The crust was molten during the Hadean Eon.
B) At the beginning of Earth's history, the planet was heavily bombarded with meteorites.
C) They have been subducted and lost to geologists.
D) Both a and b are correct.
E) Both b and c are correct.