The Concept of "Deep Time" Refers to the Following

Multiple Choice

The concept of "deep time" refers to the following:

A) that the oldest artifacts are found in the deepest parts of a site.
B) the recognition that life is ancient and evolved over time.
C) life on earth cannot be measured in thousands of years.
D) the recognition that life is ancient and evolved over time and that life on earth cannot be measured in thousands of years.