Read the following context and choose the best option to answer the question.
Context: Either way . It 's been pretty quiet today , thank god . No sign of the bad stuff in the litterbox and no clean up to do . I am hoping his next trip to the potty will have everything at least on the upswing .
Question: Why might I be paying attention to the litter box ?
Options: 
- It been pretty quiet today so I decided to clean the litter box .
 - I am waiting for hoping his next trip before cleaning .
 - My cat has sick and had diarrhea .
 - I saw sign of the bad stuff in the litter box .


My cat has sick and had diarrhea .