Task: Question Answering
Input (English): Problem: a fair 2 sided coin is flipped 4 times. what is the probability that tails will be the result at least twice, but not more than 4 times ?
Options: a. 1 / 8, b. 2 / 3, c. 5 / 8, d. 4 / 7, e. 3 / 7
Output (English): c