Task: Question Answering
Input (English): Problem: a group of boy scouts and girls scouts is going on a rafting trip. 60 % of the scouts arrived with signed permission slips. if 45 % of the scouts were boy scouts and 50 % of the boy scouts arrived with signed permission slips, then what percentage of the girl scouts arrived with signed permission slips ? round to the nearest percent.
Options: a. 64, b. 68, c. 72, d. 76, e. 80
Output (English): b