This sounds like a question a student would be asking in response to a quiz question ??????
This forum is for people experiencing Heart & Cardiovascular Disease issues. While we do appreciate and respond to questions for non-heart & cardiovascular disease family, friends, and partners, your question does not seem to fit into either categories.
~~Kitt~~Moderator: Anxiety, Osteoarthritis,
GERD/Heartburn and Heart/Cardiovascular Disease. "I am not afraid of storms for I am learning how to sail my ship" ~ Louisa May Alcott