Final answer:
The statement is false; Wegener proposed the concept of continental drift, suggesting that continents once joined into a supercontinent called Pangaea drifted apart over time, but did not suggest continents broke through the oceanic crust.
Step-by-step explanation:
False, Wegener did not propose that larger continents broke through the oceanic crust. Instead, Alfred Wegener theorized the concept of continental drift which suggested the continents had once been joined together and later drifted apart. The idea of continents actually breaking through oceanic crust doesn't align with Wegener's hypothesis. What Wegener did suggest was that the continents were once connected to form a supercontinent known as Pangaea, and this idea led to further developments in the understanding of plate tectonics.