Which of the following is a common symptom of Bell's Palsy?

Bell's Palsy is characterized by sudden, temporary weakness or paralysis of the muscles on one side of the face. This condition is typically associated with inflammation of the facial nerve, which can lead to various symptoms due to its role in controlling facial muscles as well as conveying taste sensations.

Loss of taste on the affected side is a common symptom because the facial nerve (cranial nerve VII) is responsible not only for the movement of facial muscles but also for taste sensation from the anterior two-thirds of the tongue. When this nerve is compromised due to Bell's Palsy, it can result in diminished or absent taste perception on the side where the paralysis is occurring.

Other symptoms may include drooping of the mouth or eyelid, increased sensitivity to sound, and changes in tear and saliva production. However, loss of taste specifically highlights the involvement of the facial nerve in this condition, making it the most relevant choice in this context.