your answer is C. Peripheral nervous system (PNS)
When you swallow, a flap called the epiglottis moves to block the entrance of food particles into your larynx and lungs. The muscles of the larynx pull upward to assist with this movement. They also tightly close during swallowing. That prevents food from entering your lungs.
Answer:
a index helps you find ou the meaing of a word or phrase of a story or textbook. this will help you better understand the meaing of the story
Explanation:
hope this helps:)
A,B,C I have no clue of that’s right just taking a guess