问题详情

What is the significance of understanding the sunspot component according to the passage？

A．It will help scientists understand the magnetic field of the earth.

B．It will help scientists understand the origin of the human life on earth.

C．It will help scientists know other planets in the universe.

D．It will help scientists gain a global knowledge of the Sun.

请帮忙给出正确答案和分析，谢谢！