Nonverbal signals in communication are often intentional

Extrinsic rewards of work include pride in a job well done and friendship at the workplace

Indicate whether this statement is true or false.

Exposure to natural pheromones of the opposite sex has been shown to ______

a. have no effect on mood in either males or females b. elevate the moods of males, but not females c. elevate the moods of females, but not males d. elevate the moods of both males and females