While the Precambrian Represents 88% of Earth's History, It Is

While the Precambrian represents 88% of Earth's history, it is not divided into periods or epochs like the Phanerozoic because there ________.

A) are few remaining Precambrian rocks to correlate or divide due to active tectonics
B) are no Precambrian sedimentary rocks to use for internal divisions
C) were no multi-cellular organisms nor hard-bodied fauna to leave much of a fossil record
D) are few resources in Precambrian rocks and few geologists take an interest in them