A couple months ago , I purchased a 12 year old TB mare from my old English teacher . She was lame at the time , but only a bit gimpy and the owner convinced me it was a stone bruise . I had my vet look at her , and it was , indeed , a stone bruise . Now a few months ( and probably a little over $ 1000 of xrays , joint supplements and everything later ) we ' ve come to find out she has navicular .

Question with options to choose from: Why did they go to the vet ?
Options are:
[A]. They needed to diagnose what was wrong with their cat ..
[B]. They needed to diagnose what was wrong with their dog ..
[C]. None of the above choices ..
[D]. They needed to get emergency xrays for their dog ..
[B].