A woman experiencing menopausal symptoms asks the nurse about conjugated estrogen (Premarin). Which of the following statements by the individual indicates an understanding of the medication's origin?
1) "I'm against animal cruelty, so I don't want to take anything made from animal flesh."
2) "I was told the medication is actually derived from the urine of pregnant horses."
3) "Because I'm Jewish and keep Kosher, I can't take the medication since it comes from pigs."
4) "I think harvesting medicines from cows seems rather odd."