Context: 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 " ?
Options:
0. None of the above choices .
1. People are upset because the valuable animal is gone and it is a loss of money value that is sad .
2. People are sad because the pets cause a virus that affects the physical heart .
3. The heart that is broken is the tombstone that is placed upon pets .
Answer: 0