Final answer:
Title VII of the Civil Rights Act of 1964 covers same-sex harassment after the Oncale v Sundowner case in 1998.
Step-by-step explanation:
After the Supreme Court heard the case of Oncale v Sundowner in 1998, it was officially ruled that Title VII of the Civil Rights Act of 1964 covers same-sex harassment. The court recognized that discrimination based on sex includes harassment based on the victim's gender, regardless of the sexual orientation of the victim or the harasser. This landmark decision expanded the protections against workplace harassment to include same-sex harassment.