<span>The best answer for this question would be: Do not obstruct fire doors and shutters. It is important to keep this in mind because, the safety of the people is on the line. Blocking the doors would mean a danger zone. So it is important to keep it open for everyone to exit.</span>
The answer you’re looking for is repetition, which is the repeated use of a word.
A. chronological order, which basically means the telling of things in the order in which they happen. So in this case, the person is describing the places they went IN ORDER, which means it is being chronologically told.