Harrison Works in a Cubicle at a Window Next to Karen

Harrison works in a cubicle at a window next to Karen Ravenwood's cubicle at Tabernacle Insurers. One day, Harrison overhears Karen's supervisor make a comment that she'd be more successful if she spent as much time on shaping her list of prospective customers as she does on shaping her body. Karen files a complaint of sex/gender discrimination with the EEOC and Harrison is called to testify during the investigation. The EEOC decides not to pursue the matter. A month and a half after the investigation is closed, Tabernacle management moves Harrison from his cubicle to a cubicle on a vacant floor. All other aspects of his job remain the same. Harrison files a complaint of retaliation.

A) Harrison cannot pursue a case of retaliation because the relocation of his work area between cubicles did not materially affect the terms, conditions, or privileges of his employment at Tabernacle.
B) Harrison cannot prove a case of retaliation because the investigation uncovered no wrongdoing.
C) Harrison cannot prove a case of retaliation because he is not in the same protected group as Karen.
D) Harrison can prove a case of retaliation.