What are the answers? I think I can help you on this, just tell the answers.
Since she uses the derogatory word for the Union soldiers, it is the second option.
The right answer is alternative four.
In the excerpt from "A Relay Race to Remember," the expression "he was gliding through the water like a dolphin" injects surprise into the story by making a comparison between that conveys how well Sean performs in he race. The phrase describes that Sean swims as well as a dolphin, meaning that he executes brilliantly at the race.
The rest of the options are not correct because the remark does not develop Malik's character or depicts how he swims, and it is not the end of the story.
Within The Tempest it is demonstrated that contact with native populations is rarely an even exchange; the native people are usually exploited in some way. This is demonstrated by the way that the "invaders" in the form of those who are shipwrecked at the beginning of the play attempt to change the islanders, little suspecting that one of them is the usurped Duke of Milan - now in the form of the wizard/magician Prospero.
To some extent it could also be argued that Prospero himself has already changed the nature of the island by being there. He has introduced magic, captures the monster Caliban and lies to his own daughter (allbeit it to protect her).