单项选择题

In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the best answer to each question on ANSWER SHEET TWO.
Which of the following foods is NOT mentioned to promote our dental health

A. Dairy products like soymilk and yogurt.
B. Green, white and black teas.
C. Mushrooms.
D. Fruits like orange containing Vitamin C.