Task: Question Answering
Input (English): Problem: a box contains 6 black, 8 red and 4 green marbles. 2 marbles are drawn from the box at random. what is the probability that both the marbles are of the same color ?
Options: a. 49 / 153, b. 18 / 153, c. 49 / 153, d. 40 / 153, e. 24 / 72
Output (English): a