Digits present on fore and hind limbs of Guinea Pig are
Guinea pigs are rodents that are domesticated household pets. They have the ability to learn complex learned paths for a long time. They are extensively used in researches as model organisms. They normally have four digits on their forelimbs as the thumb is absent and three digits on their hind limbs as digits I and V are absent.
So, the correct answer is '4 and 3'.