What is the response variable in thestudy? Is the response variable qualitative orquantitative?

A.

The response variable is the body mass index of the adolescents. The response variable is quantitative.

B.

The response variable is the number of the adolescents who have a high-qualitysoundsystem in their bedroom. The response variable is quantitative.

C.

The response variable is whether the adolescent has a high-qualitysoundsystem in the bedroom or not. The response variable is qualitative.

D.

The response variable is the number of the adolescents who participate in the study. The response variable is quantitative.