Simplify: (4 – 5) – (13 – 18 + 2). Choose the most appropriate option.
A) -1	B) –2	C) 1	D) 2	E) 3
(4 – 5) – (13 – 18 + 2).   = -1-(13+2-18).   = -1-(15-18).   = -1-(-3).   = -1+3.= 
<gadget id="calculator">-1+3.</gadget>
<output>2</output>
2.   correct answer 2
<result>D</result>
Simplify: (4 – 5) – (13 – 18 + 2).