Valinda is an American child who took the assessments for the TIMSS three years ago when she was in the fourth grade. When the Mathematics Achievement Results were calculated, how did scores for her American cohort compare with scores for children around the world?a. Her cohort performed lower than their peers from South Africa. b. Her cohort performed higher than their peers from the Russian Federation. c. Her cohort performed higher than their peers from England. d. Her cohort performed lower than their peers from South Korea.