I think it is C but not 100% sure
When moisture is present in the atmosphere and temperatures are low enough, ice crystals will form and continue to combine with each other until the matter is heavy enough to actually fall to the ground.
Inside a cloud, tiny ice crystals latch onto very tiny particles of dirt or debris. When the matter is heavy enough, it falls.
Hope this helps you with understanding weather function.
To establish an effective argument, it's important to eliminate emotions.
Pointing fingers, creating issues, and demonstrating power will likely take credit away from your argument, as these techniques are all largely intimidation tactics. On the other hand, by eliminating emotions, you can focus on the facts of the argument, which will establish more credibility.
