1. The four-legged animal that is a domesticated ungulate and a member of the family Bovidae is b. cow. The family Bovidae includes domesticated species such as cattle (cows), goats, and sheep, all of which are cloven-hoofed ruminants. Among your choices, the cow fits this description as a member of Bovidae.2. The animal that is easy to raise among the options is commonly b. goat. Goats are known for being hardy, adaptable, and easy to raise on various types of terrain and scarce resources, making them a popular choice for small-scale and beginner livestock farming.3. The four-legged animal that can be sold as pork meat in markets or live for lechon (roasting) is c. pig. Pork meat comes specifically from pigs, which are raised and sold for consumption in many markets, particularly for traditional dishes like lechon.