If y ≠ 3 and 2m/y is a prime integer greater than 2, which of the following must be true?
I. m = y
II. y = 1
III. m and y are prime integers.
Choose the correct choice from the following
A) None	B) I only	C) II only	D) III only	E) I and II
Note that we are asked which of the following MUST be true, not COULD be true. For such kind of questions if you can prove that a statement is NOT true for one particular set of numbers, it will mean that this statement is not always true and hence not a correct answer.   So we should try to make the listed statements not true for some m and y (which satisfy y≠3 and 2m/y=prime&gt;2).   I. m = y --&gt; not necessarily true: m=3 and y=2 (2m/y=3=prime&gt;2);   II. y=1 --&gt; not necessarily true: m=3 and y=2 (2m/y=3=prime&gt;2);   III. m and y are prime integers --&gt; not necessarily true: m=10 and y=4 (2m/y=5=prime&gt;2).   Nonenswer: None.
<result>A</result>
If y ≠ 3 and 2m/y is a prime integer greater than 2, which of the following must be true?
I. m = y
II. y = 1
III. m and y are prime integers.