while all states face similar industrial waste problems,the predominating industries and the regulatory environment of the states obviously determines the types and amounts of waste produced, as well as the cost of disposal.
A. all states face similar industrial waste problems,the predominating industries and the regulatory environment of the states obviously determines B.each state faces a similar industrial wasteproblem, their predominant industries andregulatory environment obviously determine C. all states face a similar industrial waste problem; their predominating industries and regulatory environment obviously determines D.each state faces similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determines E.all states face similar industrial waste problems,the predominant industries and the regulatory environment of each state obviously determine 这道题选E没问题,但是og上C的解释有一句using a semicolon results in a sentence fragment不太理解,分号连接的是句子啊,问什么还是fragment?谢谢~