Read the following article and answer the question by choosing from the options.

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 .

Why would he need to test his blood sugar ?
Select from the following. 1. Because I 'm a worry wart .; 2. Because Lord knows the last time he tested .; 3. None of the above choices .; 4. Because his tester was in the trailer .;...A:
3.