Answer:
c) a cricoid cartilage also called the Adam's apple
Explanation:
Larynx comprise three large cartilages, cricoid is one of them. This cartilage is present in the middle of the neck which covers the trachea. It is responsible for the opening and closing of windpipe and it also helps the human in speaking. It is softer than bone due to its composition. It is also called Adam's apple due to its structure.