Fence X is twice as long as fence Y, and fence Y is 2 feet shorter than fence Z. If 4 feet were added to each fence, which of the following must be true?
I) X is twice as long as Y.
II) Y is 2 feet shorter than Z.
III) X is longer than Z.	Choose the correct choice from the following choices:	A) I only	B) II and III	C) III only	D) I and II	E) II only
If X= 6   Y= 3   Z= 5   Then, after adding 3 feet to each:   X= 10   Y=7   Z=9   And the answer would be ,II and III which is wrong.
<result>B</result>
Fence X is twice as long as fence Y, and fence Y is 2 feet shorter than fence Z. If 4 feet were added to each fence, which of the following must be true?
I) X is twice as long as Y.
II) Y is 2 feet shorter than Z.
III) X is longer than Z.