Following preventative 6 care guidelines, how often should the average pet receive a physical examination?
a. once a year
b. every two years
c. every three years
d. every three to four months

The answer is letter D. 

In order to prevent diseases and ensure the health of your pets, you should have them checked by the veterinarian every three to four months. This is because vaccinations and the necessary shots that they need for their immune system and internal organs could be kept up-to-date by the veterinary clinic. This way, pets are cleared or prevented from contracting any unnecessary microorganisms, bacteria, or virus in their bodies. This is a preventive measure that all clinics should remind different pet owners to prevent any untoward incidents.