Read the following context and choose the best option to answer the question.
Context: I got back Monday evening from a four day trip with Matt and Ginger to Lexington , Chicago , Minneapolis , and Madison . I ' m thrilled that it went so well , to say the least . All the shows were packed and lots of fun and we came back with enough money to cover a good chunk of the coming recording expenses .
Question: What is causing the narrator some exhaustion ?
Options: 
A. They have just played a big concert .
B. They have made visits to several places .
C. They have visited Chicago for 7 days .
D. They have traveled to Chicago for the last 7 days .


B