An investigator conducted a study of cardiovascular disease (CVD) among marijuana users. They found that among men the risk of CVD was high among marijuana users, but there was no association between marijuana and CVD among women.Which of the following statements is correct?

Group of answer choices

The exposure is marijuana use, the outcome is gender, and CVD is an effect modifier.

The exposure is gender, the outcome is CVD, and marijuana use is an effect modifier.

The exposure is CVD, the outcome is marijuana use, and gender is an effect modifier.

The exposure is marijuana use, the outcome is CVD, and gender is an effect modifier.