A Sociologist Wants to Study Popular Attitudes and Perceptions About

A sociologist wants to study popular attitudes and perceptions about astrology among college students in California. She believes that people who have astrological signs identified with fire will have a greater knowledge of astrology because fire signs tend to have more interesting and attractive symbolism. What are the variables in this study?

A) astrological signs and knowledge of astrology
B) college students and symbolism
C) popular attitudes and perceptions
D) astrological signs and symbolism
E) California and college students