What Inference Can Be Made for the Closing Gap Between

What inference can be made for the closing gap between girls and boys on the math portion of the standardized SAT exam?

A) The increasing emphasis on encouraging boys to enter careers in the science field is reflected in the math SAT scores.
B) The increasing emphasis on encouraging girls to enter careers in the science field is reflected in the math SAT scores.
C) Evolutionary theory has closed the gap between boys and girls due to cultural emphasis on math and science.
D) The dual systems model has closed the gap between boys and girls due to cultural emphasis on math and science.