The Statements Below Concerning the Greatest Common Factor (GCF)are All

The statements below concerning the greatest common factor (GCF) are all true except for :

A) the name for the GCF causes confusion because many times this "greatest" number can be smaller than any of the numbers under consideration.
B) the GCF is used to find the common denominator of fractions.
C) Venn diagrams can be used to illustrate the GCF of two or more numbers.
D) two numbers must have a GCF.