Which of the following pair of times has an elapsed time of 3 hours and 20 minutes between the times?
3:20 to 6:00
8:40 to 12:00
6:30 to 9:20
5:50 to 8:10
3:20 to 6:00
8:40 to 12:00
6:30 to 9:20
5:50 to 8:10