The most accurate comparison of the physical geographies of China and the U.S. from the options provided is:
Both countries have elements in their physical geographies that allow for successful societies to develop.
This statement acknowledges that both countries have diverse physical geographies that support agriculture, trade, and overall societal development. The other statements contain inaccuracies: both countries have access to oceans, China does have rugged mountains, and China also has an extensive river network.