This question is incomplete, here is the complete question:
Read the excerpt from "Black Hole Beginnings."
As the star material gathers, its inward pressure grows. The nuclei respond by zipping and zooming faster and faster, veering away from each other all the while.
Which statement best describes the cause and effect relationship (s) in this excerpt?
The correct answer is B. One cause (star material gathers) leads to one effect (inward pressure grows), which becomes a cause of two additional effects (nuclei zip and zoom, and nuclei veer away from each other).
Explanation
According to the statement, it can be stated that the correct answer is "B. One cause (star material gathers) leads to one effect (inward pressure grows), which becomes a cause of two additional effects (nuclei zip and zoom, and nuclei veer away from each other) "because the author expresses a sequence of events and their effects. First, it states a cause which is "As the star material gathers" which has a cause which is "its inward pressure grows" and this cause has two additional causes which are "The nuclei respond by zipping and zooming faster and faster" and "veering away from each other all the while" Therefore, the correct answer is B. One cause (star material gathers) leads to one effect (inward pressure grows), which becomes a cause of two additional effects (nuclei zip and zoom, and nuclei veer away from each other).