I strongly suggest that the information in my report to Mr. Brown without delay.A. to be

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A. to be referred to; to be e-mailed
B. referring to; e-mail
(答案→)C. referred to; be e-mailed
D. being referred to; being e-mailed
解析：通过分析句子结构，可知这个句子中包含一个宾语从句。Refer与其逻辑主语之间是被动关系，故用过去分词作定语。表示“建议”的suggest之后的宾语从句用should + 动词原形，should可以被省略的虚拟语气，故选C。