Task: Question Answering
Input (English): Problem: from an island, it is possible to reach the mainland by either ferry p or ferry q. ferry p travels for 3 hours at 8 kilometers per hour, while ferry q takes a route that is two times longer. if ferry p is slower than ferry q by 4 kilometers per hour, how many hours longer is the journey of ferry q compared with the journey of ferry p ?
Options: a. 1, b. 2, c. 3, d. 4, e. 5
Output (English): a