When one is having a stuffy nose and lacks the ability to know the taste of what he is eating as in this situation. The basic thing to do in order to savour taste is simply to exhale or breathe the aroma of the food taken through the nose.
Once this is done there will be a feel of taste again.
The solution that occurs in your mouth when you eat foods with a high salt content is called a hypertonic solution. This will make the correct answer C.
