GWD-29-Q2

The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

本题答案为A ，不理解的是independently of 中的of是咋回事啊，能给个解释不？跪求大侠

The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

A.      core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field

B.      core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

难道A中and后的of 不会引起修饰混乱吗?前面有2个of 呀,怎么能看出到底是修饰那一个呢?

我的错误就在于没有彻底理解逻辑意思...因此无法判断of跟谁的...

那B的错误在于and前加了comma。。。？