The englishman who led the expedition to roanoke was

Sir Walter Raleigh

Sir Walter Raleigh funded expeditions to establish a colony on Roanoke, an  Island off the coast of North Carolina. His first attempt in 1584 failed, the second set sail in 1585 led by John White but mysteriously vanished.  

answer; i believe that the correct answer is (d); //declaration of independence; plz check first good luck

the three roles stated in the dialogue develop the siblings' personalities.

lloyd's personality looks like a trademarketer

dana's personality is afraid from lloyd's behavior and the oldest sister is a decided person who tries to solve any conflict