The sum of all the integers k such that –24 < k < 24 is	Select the correct option
A) 0
B) - 2
C) - 45
D) - 49
E) - 51

Rationale: "- 23 - - - - - - - - - - - - - - - - - - 0 - - - - - - - - - - - - - - - - - 23 values upto + 23 cancels outwe are left with only - 23 - 22 sum of which is - 45 . hence option d . c"
Answer: C