I can give you five summary’s but I will be honest I’m in 8th grade and we have not done whatever this is and I’m in advanced.
More info? What did Percy say about Mrs. Dodds?
Answer: That ancient land was located in the Middle East, a hot and sunny part of the world.
This is the only option that is correct. The sentence combines both ideas ("the ancient land was located in the Middle East" and "the Middle East is a hot and sunny part of the world) while maintaining the flow of the passage. Moreover, the sentence is grammatically and structurally correct.