Which of these is an early symptom of rabies?

The correct option is C All of the above
Explanation: Other early symptoms include a headache, fever, tiredness, sore throat, loss of appetite, stiff muscles, dilation of the eyes, increased saliva production, and unusual sensitivity to sound, light and, changes of temperature. As the disease progresses, convulsions are common and the person may have severe throat spasms when trying to swallow. The disease continues to progress for about a week, until the person dies, usually of respiratory failure.

So, the correct answer is 'All of the above'.