What is the author's main purpose in writing this passage? A: to give facts about a valuable invention and its impact on diving
B: to make readers question Cousteau's contribution to the world of diving
C: to explain the differences between the Aqua-Lung and Le Prieur's invention
D: to describe how diving has changed and improved over the years

In living to tell the tale, what does the following passage mainly reveal about the narrator (paragraph 2)? “there was not a single door, crack in the wall, a human trace that did not find a supernatural resonance in me.” : a) the narrator associates memories to specific objects that he sees. b) the narrator realizes the buildings around him should be demolished. c) the narrator feels as though he wants to connect to the people of the town. d) the narrator is unsure why he feels frightened while walking with his mother.

While looking at ads on a professional job site, justin saw this job posting: "the employee should have a degree in human behavior and at least 5 years experience in behavioral modifications. we are also looking for an employee who is good at crisis divergence. typically employees will spend a lot of time supporting others."

Which sentence is the most effective in stating the overall purpose of section 4, “confidentiality of user names and passwords? ”