Alfred Wegener cited several pieces of evidence to support his hypothesis of continental drift, one of which is that the continents fit together like a puzzle. Additionally, he pointed to the presence of similar fossils on different continents as evidence of their former connections. Therefore, among the options you provided, the correct response related to Wegener's hypothesis is:
- The continents fit together like a puzzle.
(Note: While Wegener did discuss similar fossils found on different continents, the specific option you mentioned about fossils being found at the bottom of the ocean and on land is not one he cited.)