Among the following writers,（ ）is both an insider and an outside

Among the following writers,（ ）is both an insider and an outsider of the Jazz Age with a double vision.
A、F.Scott Fitzgerald
B、Robert Lee Frost
C、E.E.Cummings
D、Ernest Hemingway
【正确答案】：A
【题目解析】：大多数批评家都认为菲兹杰拉德能从内部和外部两个视角来看待爵士时代。