When You Suck Through a Soda Straw into a Drink

Multiple Choice

When you suck through a soda straw into a drink as shown in the illustration below, what causes the drink to rise into your mouth: the muscles of your lungs and cheeks or the weight of the atmosphere?

A) the muscles of your lungs
B) the weight of the atmosphere
C) Both factors are equally accountable for the soda's rising into your mouth.
D) Actually, neither the muscles of your lungs nor the weight of the atmosphere is the reason for the soda's rising into your mouth.