Multi-choice problem: Continue writing the next sentence in this paragraph:

How to treat a cat with bloody diarrhea 
Take the cat to the vet. 
Blood in your cat's stool may be due to a variety of conditions, so you need to take your cat to the vet as soon as possible. Bloody diarrhea can lead the cat to become dehydrated.

Pick from: A). Your vet can perform various tests to determine if your cat is likely to get this condition. The vet will then be able to test for the yeast.; B). Give your cat crackers or slices of cheese to check blood levels. Do not give these foods to a cat if it's dehydrated.; C). If your cat's diarrhea is worse than normal, take it to the vet immediately. Keep the cat from drinking any red wine.; D). Bloody diarrhea may be due to minor problems, like food intolerance, or serious conditions, like cancer. The vet will complete a physical examination and take a complete medical history.;
D).