What is a common presentation associated with mumps infection?

Parotitis is the correct answer as it is a hallmark clinical manifestation of mumps infection. Mumps is a viral illness that primarily affects the salivary glands, especially the parotid glands, leading to their swelling. This enlargement can cause significant discomfort and may also lead to difficulty with chewing and swallowing. The presentation of parotitis typically occurs 16 to 18 days after exposure to the mumps virus.

While fever can accompany mumps infection, it is not unique to mumps and can occur in many other illnesses, making it less distinct as a presentation. Rash is also not a common feature of mumps; instead, it is more associated with other viral infections. Conjunctivitis may happen in various viral infections as well but is not specifically related to mumps. Thus, parotitis stands out as the defining symptom when diagnosing mumps.