Context: The weekend after that was spent fretting over some code for my research ... at that time , I decided that my initial AVL tree ( without depths ) would be insufficient for the applications I 'd need it for , so plans were drawn up to incorporate depth knowledge at each node . Yes yes , it 's been done before , but what can I say ... I like reimplementing things .

Question: What might the person 's profession be ?
Options:
0. They might work with computers
1. None of the above choices .
2. They might work with animals
3. They might work with engiens
Answer: 0