The correct answer to this open question is the following.
Although there are no options attached or further references, we can say the following.
The aspiration that seems to be uppermost in Margaret McCarthy's mind was the discovery of the steroid hormones' influence on the brain that influences the formation of the cells that define the difference between sex. That is her passion and has dedicated part of her professional life as a researcher to investigate sexual behavior and differentiation.
Ph.D. Margaret McCartney is the Chair of the Pharmacology Department at the University of Maryland.
