Final answer:
The claim that the Epistle of Barnabas states the world will last for six thousand years is true. It reflects the belief in a 'millennial week' which is not universally accepted in Christian doctrine but was a common thought in early Christian teachings. The correct option is 1) True
Step-by-step explanation:
The statement that the Epistle of Barnabas claims the world will last for six thousand years is true. Although not found in the canonical books of the Bible, the Epistle of Barnabas is a work of early Christian literature that includes theological teachings.
One of these teachings reflects a common Jewish and early Christian belief in the 'millennial week' - the idea that the world would exist for six thousand years, followed by a one-thousand-year Sabbath, echoing the seven days of Creation.
It is important to note that the Epistle of Barnabas is not considered scripture in the mainstream Christian tradition, and thus, its claims are not doctrinal for most Christian denominations. However, within the historical context and as a piece of literature, the affirmation that the work contains a prophecy about the world's duration is indeed true. The correct option is 1) True