请教gwd 一道语法题

5-19 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 .

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

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

KEY: E   请帮忙分析一下这几个选项 非常感谢各位