Task: Question Answering
Input (English): Problem: a positive number x is multiplied by 2, and this product is then divided by 4. if the positive square root of the result of these two operations equals x, what is the value of x ?
Options: a. 9 / 4, b. 3 / 2, c. 4 / 3, d. 2 / 3, e. 1 / 2
Output (English): a