Use the Following Information to Answer the Question: the Purpose

Multiple Choice

Use the following information to answer the question: The purpose of the research was to determine whether cholesterol level is related to lifestyle behaviors. The lifestyle behaviors of interest were physical activity, dietary fat intake, smoking status, and self-reported life satisfaction. The researchers rejected the null hypothesis. What was the primary independent variable in this study?

A) Smoking status
B) Physical activity
C) Risk for elevated cholesterol
D) Gender
E) Lifestyle behaviors