Correct Answer: Sanguivorous

Solution : The correct option is Sanguivorous.

Leeches are ectoparasitic creatures that feed on their hosts' blood and are classified as sanguivorous. When leeches infest cattle or other animals, they attach themselves to the host's skin, cause an incision with their specialised mouthparts, and then feed on the host's blood. This blood-feeding behaviour is typical of sanguivorous parasites like leeches and is how they gain nutrition.