Context: We rigged it up so that it works again , but it 's no longer a textbook SPL system . We 're going to keep up the meds for another week , but reduce her Banamine from 500 # twice a day to 500 # once a day . Rosie did not act like a lady for Megan today .
Question: What may be the reason why they needed to adjust the medicine ?
Option 0: They could n't afford it anymore .
Option 1: They wanted to see if she did n't need it anymore .
Option 2: They want to try a natural approach .
Option 3: It was no longer working .
Answer: 3