If 144/x is an integer and 180/x is an integer, which of the following must be true?
I. 9/x is an integer.
II. 12/x is an integer.
III. 36/x is an integer.	Select the correct option:
A) I, II, and III
B) I and II only
C) II and III only
D) III only
E) I only
The largest possible value of x is 36 (the greatest common factor of 108 and 180), and if x=36 then   III only
<result>D</result>
If 144/x is an integer and 180/x is an integer, which of the following must be true?
I. 9/x is an integer.
II. 12/x is an integer.
III. 36/x is an integer.