Task: Question Answering
Input (English): Problem: if 625 ^ ( - x ) + 25 ^ ( - 2 x ) + 5 ^ ( - 4 x ) = 14, what is the value of x ?
Options: a. - 4, b. - 1 / 4, c. 0, d. 1 / 4, e. 4
Output (English): d