Answer :
lets try to draw a line here, now, I can draw the tick marks but you can imagine them that there are above the numbers
__________F________________________________________________
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 1 0
the answer is C
__________F________________________________________________
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 1 0
the answer is C