Final answer:
An arahat in Theravada Buddhism is one who has a. achieved enlightenment and reached a state of liberation known as Nirvana.
Step-by-step explanation:
An arahat in Theravada Buddhism is one who has a. achieved enlightenment (bodhi). According to Buddhism, the founder of Buddhism, Siddhartha Gautama, later known as the Buddha, achieved enlightenment after meditating under a sacred fig tree.
The Buddha's teachings emphasize the path to freedom from suffering and the importance of living a moral life. Arahats, or enlightened ones, have transcended desires and attachments and have reached a state of liberation, often referred to as Nirvana.