For most of the way after Parkdale , CO we followed the Arkansas River . We stopped a couple of times to take pictures . About an hour before we reached Gunnison it started raining . And continued to rain for hours .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason for being on the road so much ?
Options:
- They are out to explore for the day .
 - None of the above choices .
 - They 're on a road trip .
 - They 're on a scavenger hunt .


They 're on a road trip .