(A) compared to的比较对象不对象,前者419 times the pay of blue-collar workers表达的是工资数,而后者a ratio of是比率.
(B) a ratio that compares的compare不能用主动方式表达,应该是被比较sth be compared to…的省 略形式（省略了主语和系动词,是惯用法）；compare to的比较对象不对象,前者419 times the pay of blue-collar workers表达的是工资数,而后者42 times是比率.
(C) 正确,as compared to比较结构,419 times the pay与42 times their pay比较,the ratio…是同位 语.
(D) 缺少that引导宾语从句；indicates CEO's who…句子结构不完整,缺少谓语,who引导定语从句 修饰名词CEO's.
(E) 缺少that引导宾语从句；indicates CEO's earning…句子结构不完整,缺少谓语；compare to的 比较对象不对象,前者419 times the pay of blue-collar workers表达的是工资数,而后者42 times是 比率.