The correct answer is: A. 2000 years ago
The first historical mention of the holding of the ancient Olympic Games occurred in 776 BC. The Games were held every four years in Olympia, Greece, until they were abolished by the Roman emperor Theodosius I in 393 AD.
The ancient Olympic Games were a religious festival held in honor of Zeus, the king of the gods. The Games were open to all free male citizens of Greece, and they included a variety of athletic events, such as running, jumping, wrestling, and boxing.
The ancient Olympic Games were a major cultural event in Greece, and they helped to promote Greek unity and identity. The Games also had a significant impact on the development of sport and athletics in the Western world.
Option B is incorrect because the first historical mention of the holding of the ancient Olympic Games occurred in 776 BC, not 2200 years ago.
Option C is incorrect because the first historical mention of the holding of the ancient Olympic Games occurred in 776 BC, not 2400 years ago.
Option D is incorrect because the first historical mention of the holding of the ancient Olympic Games occurred in 776 BC, not 2775 years ago.