My mother vowed several years ago that she would never own another pet . " They just break your heart when they die and I ca n't take it anymore . " I agree with her .

Question: What is the thing that " breaks your heart " ?
Answer: None of the above choices .People are upset because the valuable animal is gone and it is a loss of money value that is sad .People are sad because the pets cause a virus that affects the physical heart .The heart that is broken is the tombstone that is placed upon pets .