Clarification:
I found the text to complete the exercise online.
Answer:
A. Due to the high level of road congestion and law restrictions, the California Highway Patrol has informed Mark Harris it is too dangerous to continue his walk south on HWY 101 from Santa Rosa.
Explanation:
To complete this exercise, you have select the correct option that is best added to the text. In this case, the correct option is "A" because it starts with "due to..." which gives a reason to explain why it's dangerous to continue south and it's the only one that starts this way.