Which pairs of monomials have a GCF of 4a? Select all that apply.
A) 4a and 8a
B) 4a and 12a
C) 4a and 16a
D) 8a and 12a
E) 8a and 16a
A) 4a and 8a
B) 4a and 12a
C) 4a and 16a
B) 4a and 12a
C) 4a and 16a
D) 8a and 12a
E) 8a and 16a
A) 4a and 8a
B) 4a and 12a
C) 4a and 16a