Read the following context and choose the best option to answer the question.
Context: Sometimes I wonder if the chemistry staff and the families should have a way of honoring those that have passed . I know quite a few have died suddenly in that department - there was Paul Abel , Chris , and my dad . I can think of those right off the top of my head .
Question: Why is there a negative vibe in the chemistry department ?
Options: 
- Several colleagues have passed away .
 - None of the above choices .
 - Several colleagues have gotten new jobs .
 - Several colleagues have become difficult to work with .


Several colleagues have passed away .