Read the list of phrases from the section "First Steps In CSI." isolated and secured

crucial physical evidence

series of protocols

establishes a perimeter

How does the tone developed by these phrases help the author achieve her purpose?

1. by conveying a sense of lonely and secluded work conditions

2. by conveying a sense of physically demanding and difficult work

3. by conveying a sense of fascinating and adventurous events

4. by conveying a sense of a deliberate and methodical procedure