Task: Question Answering
Input (English): Problem: the distance from city a to city b is 120 miles. while driving from city a to city b, cara drives at a constant speed of 30 miles per hour. dan leaves city a 120 minutes after cara. what is the minimum constant speed in miles per hour that dan must exceed in order to arrive in city b before cara ?
Options: a. 42, b. 44, c. 60, d. 48, e. 50
Output (English): c