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 .

Select from:
(i) They could n't afford it anymore ..
(ii) They wanted to see if she did n't need it anymore ..
(iii) They want to try a natural approach ..
(iv) It was no longer working ..
Q: What may be the reason why they needed to adjust the medicine ?
(iv)