Answer:
Fact by fact
Step-by-step explanation:
Depending on the type of information a text contains, it will be organized in a certain way. The organization of the given passage can be defined as fact-by-fact. Here, we have a list of facts - what the drifting rocks are, where they are located, how much they move, what the scientists think.
Cause and effect organization requires a causal relationship to be present. This means that at least two events need to be described, out of which one (cause) causes the other (effect).
Chronological order refers to the arrangement of events in the order they took place.
Problem-solution organization requires for a problem and its solution to be present.
Based on this information, we can see that the third option is the correct one.