Given below are two statements.

Statement I: During swallowing, the glottis is covered by muscular epiglottis to prevent the entry of food into the larynx.

Statement II: A portion of the larynx is the common passage for food and air.

In light of the above statements, choose the correct answer from the options given below. 

Both statement I and statement II are incorrect.

Statement I is incorrect. During swallowing, the glottis is covered by the epiglottis, which is a flap of elastic cartilage (not muscle). The epiglottis helps prevent food and liquids from entering the trachea (windpipe) by covering the glottis.

Statement II: This statement is incorrect. The pharynx (not larynx) serves as a common passage for food and air and it intern opens into the larynx (soundbox).