TOEFL Listening: TPO-TOEFL阅读TPO - 972X431W8OJB3E3VN$

According to paragraph 5, which of the following is true of the stream of charged particles from the ground? A. It prevents streams of electrons from the cloud from striking the ground B. It completes a channel that connects the storm cloud with the ground C. It produces a stream of electrons from the cloud D. It widens the path made by the initial stream of electrons from the cloud