**Description : **Consider a triangle A(0, 0), B(1, 1), C(5, 2). The triangle has to be rotated by an angle of 450 about the point P(-1, -1). What shall be the coordinates of the new triangle? (A) A'=(1, √2-1), B'=(-1, 2√2-1), C'=(3√2-1, (9/2)√2-1) (B) A'=(1, √2-1), B'=(2√2-1, -1), C'=(3√2-1, (9/2)√2-1) (C) A'=(-1, √2-1), B'=(-1, 2√2-1), C'=(3√2-1, (9/2)√2-1) (D) A'=(√2-1, -1), B'=(-1, 2√2-1), C'=(3√2-1, (9/2)√2-1)