Luanne files a harassment claim when her coworker Trixy fails to stop bothering her with religious proselytizing activities. Which of the following is true?

• If Luanne's employer did nothing about Trixy after Luanne complained, then it can be held liable for the harassment to Luanne.
• Even if Luanne's employer took reasonable action to stop Trixy's harassment, it can still be held liable for the harassment to Luanne.
• Trixy herself is liable for her actions toward Luanne.
• Luanne cannot file a harassment suit based on proselytizing activities alone.