90. According to the passage, what is the author's primary concern regarding the "overemphasis on mindset"?(A)It may inadvertently lead to the total abandonment of traditional assessment metrics in modern classrooms.(B) It might cause educators to ignore the psychological distress associated with academic overachievement.(C) It may encourage students to perceive failure as a permanent reflection of their lack of effort.(D) It risks delegitimizing the impact of external barriers by placing the entire onus of achievement on the individual’s psychological state.