Multi-select problem: How does the next paragraph end?

How to diagnose stomatitis in tortoises
Pay attention to your tortoise's appetite.
When a tortoise is having issues inside of their mouth, changes to their food consumption may be the first signal. If your tortoise is eating less than they usually do, then they may have a problem developing.

Available options: (A). If you have had your tortoise for awhile, it should be easier for you to tell that something is off. Look for signs of discomfort or stress. (B). They will likely refuse meals full of raw fruits and vegetables, including broccoli and rice. Keep an eye on your tortoise if they feel that the food is bothering them. (C). Appetite changes can start with a different food source, but they can also be generalized symptoms. It might take weeks or months to see any change in the tortoise's eating habits. (D). A decrease in appetite often indicates that they are overeating. Diarrhea or vomiting are the first signs of stomatitis.
(A).