Explanation:

Both statements 1&3 are correct.

• Ramsay Hunt Syndrome, also known as Herpes Zoster Oticus, is a virus infection of the geniculate ganglion (7th cranial nerve) of the facial nerve that occurs when a shingles infection affects the facial nerve. 
• Only about five to 10 out of every 1,00,000 people will develop Ramsay Hunt Syndrome every year, making it an extremely rare disorder.
• When the nerves get inflamed, they lose their ability to function, leading to temporary facial palsy or paralysis.
• There are 12 cranial nerves in the body. Ramsay Hunt Syndrome is a viral infection impacting the 7th cranial nerve that is involved in facial movements. 
• Ramsay Hunt Syndrome is caused by reactivation of varicella zoster virus that has previously caused chickenpox and shingles in the patient.
• This virus belongs to the herpesvirus group and can stay in the body as a latent infection.
• Varicella Zoster Virus can get reactivated due to weakening of the immune system.
• The disease is not contagious but can lead to chickenpox in those not vaccinated for the disease.

Hence option 3rd is correct.