Based on the Study by Spencer Et Al

Based on the study by Spencer et al. (1999) , if we want to reduce the effects of gender-based stereotype threat about women's math ability, what should we do?

A) Increase the women's self-esteem in other academic areas.
B) Give extra tutoring in math to women.
C) Bring in positive role models for women, such as female engineers or mathematicians.
D) Indicate the math test has not shown gender differences in the past.