Which of the Following Is True of Gruber's Meta-Anlysis on Physical

Which of the following is true of Gruber's meta-anlysis on physical activity and self esteem?

A) Too few studies were found to make any substantive conclusions.
B) Typically developing children's self esteem benefitted from physical activity, though that was not the case with those who were developing atypically.
C) The greatest self esteem gains were seen in those children who needed it the most.
D) Physical activity had very little impact on self esteem.