1(1!)+2(2!)+3(3!)....2012(2012!) = ?  Choose the correct choice from the following choices:	A) 1	B) 5	C) 6	D) 7	E) 8
1(1!)=1 ⇒⇒ 2!-1   1(1!)+2(2!)=1+4= 
<gadget id="calculator">1+4</gadget>
<output>5</output>
5 ⇒⇒ 3!-1   1(1!)+2(2!)+3(3!)=1+4+18= 
<gadget id="calculator">1+4+18</gadget>
<output>23</output>
23 ⇒⇒ 4!-1   1nswer:1
<result>A</result>
1(1!)+2(2!)+3(3!)....2012(2012!) = ?