Question 15 - ESL Reading Skills Practice Test for the ACCUPLACER Test

John was late for work on Wednesday and he couldn’t figure out how it happened. His alarm rang at the right time and he got up immediately. Then, there was no hot water so he had to take a cold shower. After that, he quickly got dressed, grabbed some coffee and left. On the way, there was a road detour that took him 20 miles out of his way. The boss was standing at the door when John walked in.

According to the passage, what most likely caused John to be late for work?