单选题 ______it is generally agreed that sex-role stereotyping contributes to narrowly defined expectations about human potential, limited career options for males and females, and mixed messages about the world which contradict daily life experience, the social costs of such stereotyping have not been fully explored in the educational arena.
【正确答案】 C
【答案解析】解析：本题中的主句是说“这类刻板成见的社会成本在教育领域还未进行充分探索”，从句是说“尽管人们普遍认为，性别角色刻板成见狭隘地界定了对人类潜能的预期，限制了男性和女性的职业选择，提供了与日常生活经历相反的关于这个世界的错综复杂的信息”。从中可以看出，主从句之间是让步关系，因此C项正确。