Which of the following expressions are equivalent?
I. 5a6
II. 30a
III. a6 + a6 + a6 + a6 + a6
IV. 6a5
A.
II, III and IV
B.
I and III
C.
I, II and III
D.
II and IV
I. 5a6
II. 30a
III. a6 + a6 + a6 + a6 + a6
IV. 6a5
A.
II, III and IV
B.
I and III
C.
I, II and III
D.
II and IV