What are the explanatory and response variables in this experiment?

A)The explanatory variables is the weight of the bowling ball which is categorical,and the response variable is the outcome of the roll which is categorical.

B)The explanatory variables is the weight of the bowling ball which is quantitative, and the response variable is the outcome of the roll which is quantitative.

C)The explanatory variables is the outcome of the roll which is quantitative,and the response variable is the weight of the bowling ball which is quantitative.

D)The explanatory variables is the outcome of the roll which is categorical,and the response variable is the weight of the bowling ball which is categorical.

Erica is an avid bowler and suspects that she will roll more strikes if she uses a heavier ball. She decided to perform an experiment with two different ball bowls each ball 10 times and records the outcome of each attempt