Answer: B
Explanation: Aphthous ulcers are white, round, or oval lesions surrounded by a red halo that appear on the buccal mucosa.
Here are ways to prevent yourself from getting sick:
1) Washing your hands.
2) Going to bed.
3) Avoid making contact with someone that's sick.
Those are a few ways you can prevent yourself from getting sick!
-LizzyIsTheQueen
She should follow exercises approved by her doctor and have an eating plan
