A. To demonstrate their expertise
Answer:
I am pretty positive its the last one, "How computer viruses can be prevented"
Explanation:
Computer Viruses are the problem, and how they can be prevented is the solution
the following answer to the question is true.
Flour Power: A Guide to the Modern Green Kitchen Should be the answer if it is a title and if Flour Power is the actual title and "A Guide to the modern Green Kitchen is a description of the title in the title.