DrSanchez Has Analyzed Standardized Test Results for Two Countries and Discovered

Dr.Sanchez has analyzed standardized test results for two countries and discovered that in Country 1 there are almost identical distributions of physics scores for male and female students,while in Country 2 male students performed better than female students.Which explanation best accounts for these differences in scores?

A) Country 1 is a more gender-equal society than Country 2.
B) Country 2 is a more gender-equal society than Country 1.
C) Physics ability is less likely than math to reflect real biological differences,so it's expected that there will be gender differences by country.
D) Physics ability is more likely than math to reflect real biological differences,so it's expected that there will be gender differences by country.