Task: Question Answering
Input (English): If \(k\) is a negative number, which of the following must be a positive number?
(A)\(k - 5 \) (B)\(k + 5\) (C)\(k^2 - 5 \) (D)\((k + 5)(k - 5)\) (E)\(k(k - 5)\)
Output (English): E