Possible long-term consequences of the “greenhouse effect,” the gradual warming of the Earth’s climate, may include melting the polar ice caps and a rising sea level.

A. may include melting the polar ice caps and a rising sea level

B. may include the melting of polar ice caps and the rising sea level

C. may include polar ice caps that are melting and sea levels that are rising

D. include melting the polar ice caps and sea levels that are rising

E. include melting of the polar ice caps and a rise in sea level

答案是E

melting前面没冠词，是不是and连接并列成分时，冠词不需对应？PREP里说过原文有情态动词的不能随意删去，那may也是情态动词啊，不应省去吧，E没有。