Read the text carefully: 'Mr. Demir is a history teacher at our school. He is a man in his late 40s, with a slightly receding hairline and a neatly trimmed beard. He usually wears glasses and has a calm, thoughtful expression. Students respect him not only for his vast knowledge but also for his patience and fair approach to everyone. He is known for his ability to explain complex topics in a simple way, and he always encourages students to think critically. However, he can be quite strict about deadlines.' Which of the following statements is NOT supported by the text?
A) Mr. Demir is a history teacher.