The correct option is
D Inflammation of salivary glands
- Mumps is an acute infectious and contagious disease caused by a mumps virus of the genus
- Rubulavirus and characterized by fever, inflammation and swelling of the parotid gland and sometimes of other salivary glands.
- The main symptom of mumps is painful and swollen parotid (salivary) glands, which cause the person's cheeks to puff out.
- The MMR vaccine is commonly given at an early age to help the body become immune to the virus.
Therefore, the correct answer is option D.