If s,u, and v are positive integers and s=2u+2v, which of the following must be true?
i. s=u
ii. u is not equal to v
iii. s > v  Choose the correct choice from the following answers:  A) None  B) I only  C) II only  D) III only  E) II and III
Notice two things: 1. we are asked to find out which of the following MUST be true, not COULD be true and 2. s, u, and v are positive integers.   Given: s=2u+2v --&gt; s/2=u+v. Now, since s, u, and v are positive integers then s is more than either u or v, so I is never true and III is always true. Nones for II: it's may be necessarily true,   Nonenswer: None
<result>A</result>
If s,u, and v are positive integers and s=2u+2v, which of the following must be true?
i. s=u
ii. u is not equal to v
iii. s > v