The sum of the first 50 positive even integers is 2550. What is the sum of the even integers from 402 to 500 inclusive?  Choose the most appropriate option:
A) 14,550
B) 18,550
C) 22,550
D) 26,550
E) 30,550

Rationale: "2 + 4 + 6 + 8 + . . . + 100 = 2550 402 + 404 + . . . + 500 = 50 ( 400 ) + ( 2 + 4 + . . . + 100 ) = 20,000 + 2550 = 22,550 the answer is c ."
Answer: C