sentence2_structure: This process<>takes<>the longest amount of time<>usually
sentence1: to distort) The process of deformation that produces in the earth's crust, its continents and ocean basins, plateaus and mountains, folds of strata, and faults.
sentence2: This process usually takes the longest amount of time: an ocean basin forms between two continents.
question: Which of the following processes usually takes the longest amount of time?