What is the response variable in the study? is the response variable qualitative or quantitative? a. the response variable is the number of individuals who participate in the study. the response variable is quantitative. b. the response variable is the number of individuals who participate in the study who eateat two or more servingstwo or more servings of kalekale per day. the response variable is quantitative. c. the response variable is whether the woman has congestive heart failurecongestive heart failure or not. the response variable is qualitative. d. the response variable is consumption of kalekale. the response variable is quantitative. what is the explanatory variable?