Context: After xrays and blood tests , they found out that she has a sinus infection and tonsilitis . Did n't know that dogs could get that . Anywho , in other news , I am doing a clean sweep of my apt . I ' ve given away , thrown away , boxed up , packed up , and moved a ton of things so far .

Question: Why did they do xrays and blood tests ?
Options:
0. Because there was possibly something physically wrong with their dog .
1. Because the writer did n't know dogs can get tonsilitis .
2. None of the above choices .
3. Because the writer did n't know dogs can get sinus infections .
Answer: 0