Passage - 4 (Question 68 to 69)
Let f be an even function satisfying
f(x−2)=f(x+[x2+26x2+13])∀x∈R and
f(x)={3x,4−x,0≤x<11≤x≤4
[Note : [y] denotes greatest integer function of y]
The area bounded by the graph of f(x) and the x-axis from x=−1 to x=9 is
(a) 231
(b) 15
(c) 12
(d) 215