Task: Question Answering
Input (English): What is the perimeter of a triangle with vertices \((-1, 1)\), \((5, 1)\), and \((2, 5)\)?
(A)16 (B)13 (C)\(6 + 2\sqrt{7}\) (D)11 (E)\(6 + 2\sqrt{5}\)
Output (English): A