Which of the following is NOT a confined space? Please choose the best answer. A sewer. A trench. A crawl space. An office.

The best answer is: An office.An office is NOT considered a confined space. Confined spaces are typically areas that are not designed for continuous occupancy, have limited or restricted means of entry or exit, and may contain hazardous atmospheres. A sewer, trench, and crawl space fit these criteria, whereas an office does not.