Task: Question Answering
Input (English): Problem: a truck drives 80 miles on local roads at 30 mph, and 50 miles on the highway at 60 mph, the truck also take a hour lunch break. what is the average speed of the entire trip ?
Options: a. 30 mph, b. 29 mph, c. 28 mph, d. 31 mph, e. 23 mph
Output (English): a