Which of the following is an example of quid pro quo sexual harassment?

Thad makes a point of touching Beth's hair or shoulders when he speaks to her, even though she has told him that this makes her feel uncomfortable.

Sondra's cubicle mate displays a Playboy Playmate a Day Calendar on his desk.

Sondra's boss tells her, $"$If you don't go out with me$,$ you could be making a career$-$limiting decision."

Dave repeatedly makes lewd remarks to his coworker, despite her requests that he refrain from doing so$.$