【正确答案】正确答案：It refers to a group of women with cancer．

【答案解析】解析：根据cancer posse定位至第3段第4句。由该句的The result was…可知，cancer posse是Carr致电她朋友后的结果，而她打电话的目的就是为了寻找young women with cancer，故推知cancer posse意为“一群患癌症的女性”。所以本题答案为It refers to a group of women with cancer。