Missouri Security Guard Practice Exam

By being observant, a security guard gains a combination of memory, ability to recognize inconsistencies, and safety. Option A alone is not enough as it only refers to the memory aspect. Option B is also not enough as it only mentions recognizing inconsistencies, but not the importance of memory and safety. Option C is incorrect as it does not fully encompass the benefits of being observant. Therefore, option D, all of the above, is the most accurate and complete answer.