The correct answer is C.
When approaching a crime scene, the first step is to secure and protect it (step 6). If the scene is not secured or protected, evidence may be moved or tampered with, which can strongly harm the investigation. Answers B and D can therefore be eliminated.
Step 7 instructs you to record and collect evidence. When investigating a crime scene, the location of evidence can be important and therefore evidence should only be collected after the scene has been captured photographically (step 2), and after a detailed search of the scene has been conducted (step 5). We can therefore eliminate answer A, and conclude that C is the correct answer.
You may also have noticed:
A narrative of the scene can only be prepared (step 4) after the scene and the evidence have been closely examined. This must therefore be one of the last steps.
The word “preliminary” in step 3 indicates to us that this is one of the first steps. Taking a preliminary survey should come before evaluating what kind of physical evidence may be present (step 1).