GWD-12-6不理解

Q19:

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.

1. may include melting the polar ice caps and a rising sea level
2. may include the melting of polar ice caps and the rising sea level
3. may include polar ice caps that are melting and sea levels that are rising
4. include melting the polar ice caps and sea levels that are rising
5. include melting of the polar ice caps and a rise in sea level

Answer: e

不明白为什么是e，melting of和a rise 怎么接？ a为什么又不对？

1. may include melting the polar ice caps and a rising sea level
               
2. may include the melting of polar ice caps and the rising sea level
               
3. may include polar ice caps that are melting and sea levels that are rising
               
4. include melting the polar ice caps and sea levels that are rising
               
5. include melting of the polar ice caps and a rise in sea level

A,B,C 的may，都与possible重复，并且,a,b的平行结构都不对

D，的平行也不正确，只有E正确，是名词和名词的平行