Can anyone help me with this question again? Thanks so much
Food is prevented from entering the trachea because:
A. Trachea will constrict during swallowing
B. Oesophagus will dilate during swallowing
C. Glottis will constrict during swallowing
D. Larynx will be raised during swallowing
A, B, C, D are the options pls choose one
give useful and solid answers pls