The majority of nurses are women, but in the higher ranks of the medical profession women are in a ________.
句意：大部分护士是女性，但是在更高级的医疗行业中，女性是少数。minority少数派；少数 民族。scarcity不足；缺乏。maximum最大限度；最大量。minimum最小值；最低限度。故选A。