Read the following context and choose the best option to answer the question.
Context: His tester was in the trailer earlier and that was hours ago . Lord knows the last time he tested . " Nick , I hate to be a worry wart , but have you tested your blood sugar ? " He smiled . He knew that I was concerned .
Question: Why would he need to test his blood sugar ?
Options: 
- Because I 'm a worry wart .
 - Because Lord knows the last time he tested .
 - None of the above choices .
 - Because his tester was in the trailer .


None of the above choices .