51 + 52 + 53 + .........+100) is equal to  Select the correct option.
A) 3775
B) 3779
C) 3629
D) 3729
E) 3719
51 + 52 + 53 + ...........+ 100   = (1 + 2 + 3 + .... + 100) - (! + 2 + 3 + ...... + 50)   =   = (5050 - 1275)= 
<gadget id="calculator">(5050 - 1275)</gadget>
<output>3_775</output>
3775   3775nswer;3775
<result>A</result>
51 + 52 + 53 + .........+100) is equal to