What is the sum of all even numbers from 1 to 901?  Choose the correct answer:
A) 122821
B) 202950
C) 281199
D) 122850
E) 128111
Explanation:   900/2= 
<gadget id="calculator">900/2</gadget>
<output>450</output>
450   450 * 451= 
<gadget id="calculator">450 * 451</gadget>
<output>202_950</output>
202950   Answer: 202950
<result>B</result>
What is the sum of all even numbers from 1 to 901?