Which of the Following Statements About Unconformities Is NOT True

Which of the following statements about unconformities is NOT true?

A) The sedimentary rock record of most regions represents only 1% to 5% of Earth's existence.
B) Virtually every sequence of sedimentary rock layers contains one or more unconformities.
C) No single place on Earth contains all of the rock strata composing the entire geologic record.
D) Unconformities occur when plate- tectonic forces cause sediments to be deposited at an angle instead of horizontally.