Answer: B) securing the crime scene
Step-by-step explanation:
Crime scene is a place where potent evidences related to crime can found. On reaching the scene of crime the first officer should take initiative to provide first aid to the victim or any other injured person so that he can be witnessed upon the events which could have happened in the past. Later on the first officer should secure the scene of crime, so as to avoid any unwanted entry of people who can contaminate the scene of crime as well as may deteriorate the potent evidences which can be used later for proving crime.
On the basis of the above explanation, B) securing the crime scene. is the correct option.