求教一道语法题

vivianhigh

New theories propose that  catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

　　A splitting apart continents
　　B the splitting apart of continents
　　C split apart continents
　　D continents split apart
　　E continents that were split apart

cidisnotjayz

明显划线部分要和the onset of ice ages，great volcanic eruptions平行
A当中的splitting是动词，C当中的split也是动词，E continents that were split apart均不平行， 排除
continents split apart强调的是continents 而原句要说的是 splitting
或者你这么理解，逻辑上彗星撞地球不会造成continents，而是造成了splitting

vivianhigh

恩恩~很有道理！明白了~谢谢~