What is the main conflict in the short story american history?

As the story progresses, we come to the realization that Elena feels alienated from her parents, her school peers, and mainstream society. First, she is Puerto Rican, and her command of English isn't good enough for her to be admitted into honors classes at school. Elena also finds herself rejected and ridiculed by the African-American girls she tries to best in rope-jumping. Because she is thin and small-framed, Elena finds it difficult to keep up with her more robust peers. Her schoolmates cruelly refer to her as Skinny Bones. As a small-chested Puerto Rican teenager, Elena feels self-conscious and humiliated that she lacks the kind of physique the more popular girls have