__ their brightly coloured beaks and feet, Atlantic puffins are -the world's most distinctive seabirds. A) On / from B) Over /of C) Beyond / within D) For / about E) With / among

The correct answer is E) With / among. The sentence should read: "With their brightly coloured beaks and feet, Atlantic puffins are the world's most distinctive seabirds." This means that the puffins are characterized by their brightly coloured beaks and feet, making them the most distinctive seabirds in the world.