Task: Question Answering
Input (English): If \(k(a^2 - b^2) = 0\), which of the following could be true? I. \(k = 0\) II. \(a = 5\) and \(b = 5\) III. \(a = -b\)
(A)I only (B)II only (C)III only (D)I and III only (E)I, II, and III
Output (English): E