Answer: B
Explanation: Aphthous ulcers are white, round, or oval lesions surrounded by a red halo that appear on the buccal mucosa.
<span>A medical term for abnormal, involuntary, spasmodic movements is dyskinesia.
Any type of involuntary movement falls under the category of dyskineasia - twitches, tics, chorea, slight tremors, or uncontrollable movement of any part of your body. There are many causes of this disorder, and it usually cannot be treated without medications.
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