As x increases from 165 to 168, which of the following must increase?
I. 2x - 5
II. 1 - 1/x
III. 1/(x^2 - x)
Select the correct option:	A) I only	B) III only	C) I and II	D) I and III	E) II and III
I. 2x - 5 --&gt; x increases from 165 to 168 --&gt; 2x increases --&gt; 2x - 5 increases. Correct.   II. 1 - 1/x --&gt; x increases from 165 to 168 --&gt; 1/x decreases --&gt; 1 -1/x increases. Correct.   III. 1/(x^2 - x) --&gt; x increases from 165 to 168 --&gt; x^2-x increases --&gt; 1/(x^2 - x) decreases.   Answer: I and II.
<result>C</result>
As x increases from 165 to 168, which of the following must increase?
I. 2x - 5
II. 1 - 1/x
III. 1/(x^2 - x)