Which of the Following Statements Regarding Relative Atomic Masses Is

Which of the following statements regarding relative atomic masses is incorrect?

A) Relative atomic mass is one of the numbers that appears on a typical periodic table.
B) The average mass of the individual isotopes of an element considering the natural abundance of each is the relative atomic mass of that element.
C) The relative atomic mass of carbon is 12.01 amu because carbon-12 is the most abundant isotope, with smaller amounts of carbon-13 and carbon-14.
D) The terms "mass number" and "relative atomic mass" can be used interchangeably.
E) Mass spectrometry is used to find the mass of each isotope of an element, and measure their abundance.