In Axsom and Cooper's Study of Weight Reduction, They Found

In Axsom and Cooper's study of weight reduction, they found that women in the ________ effort condition reported significant weight loss at ________.

A) low; 4 weeks but not at 12 months
B) low; 12 months but not at 6 weeks
C) high; 4 weeks but not at 12 months
D) high; 12 months but not at 4 weeks