Let f: R → R be a continuous and bijective function defined such that f(α) = 0 (α ≠ 0). The area bounded by y = f(x), x = α, x = α - t is equal to the area bounded by y = f(x), x = α , x = α + t ∀ t ∈ R, then
Graph of y = f(x) is symmetrical about point
(A) (0, 0)
(B) (0, α)
(C) (α, 0)
(D) (α, α)