题目内容：
Sequoyahwas a young Cherokee Indian．son of a white trader and an Indian Squaw(北美印第安女人)．At an early age，hebecame fascinated by“tile talking leaf”，an expressionthathe used to describe the white man’s written records．Although many believe this"talking leaf”to be a gift from tileGreat Spirit，Sequoyah refused to accept that theory．Like other Indians oftile period，he wasilliterate，but his determination to remedy tilesituation led to the inventionof a unique 86 character alphabet based on thesound patterns that he hearD． Hisfamily and friends thought him mad，but while recuperating(恢复)from a huntingaccident．he diligently andindependently set out to create a form of communication for his ownpeople aswell as for other Indians．In l821，after twelve years of work，he hadsuccessfully de。veloped a written language that wouldenable thousands of Indians to read and writE． Sequoyah’s desire to preserve wordsand events for later generation has caused him to be remembered among theimportant inventors．The giant redwood treesof-California，called“se-quoias(红杉)”in his honor，will further imprint his namein history． 根据以上内容，回答{TSE}题。{TS}What is the mostimportant reason that Sequoyah wiU be remeIll]bered?A．He was illiteratE．
B．California redwoods werenamed in his honor．
C．He recovered from hismadness and helped mankinD．
D．He created a uniquealphabet．
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