Task: Question Answering
Input (English): Problem: the average weight of 8 person ' s increases by 2.5 kg when a new person comes in place of one of them weighing 66 kg. what might be the weight of the new person ?
Options: a. 56 kg, b. 90 kg, c. 86 kg, d. data inadequate, e. none of these
Output (English): c