Which statement about computer viruses is most accurate?

Multiple Choice

Viruses could be completely eliminated if people would quit sharing infected files.

Wild rumors and sloppy reporting have exaggerated the threat computer viruses pose to typical computer users; almost all real$-$world computer viruses turn out to be harmless practical jokes.

The Internet contains built$-$in safeguards that prevent programs with viruses from being downloaded.

Although antivirus software can help identify and eliminate known viruses, the software must be updated frequently to remain effective.