Which statement best explains the importance of the Yangtze River to ancient Chinese civilizations? A The Yangtze River was a barrier from invasion.
B The Yangtze River eventually connected to the Grand Canal.
C The Yangtze River extended all of the way to the Tibetan Plateau.
D The Yangtze River connected different parts of the ancient empire.

Plz help

Why was the u. s. annexation of hawaii delayed until william mckinley became president? a: the rebels who overthrew queen liliuokalani opposed u. s. annexation. b: the senate did not approve the treaty of annexation until mckinley entered the white house. c: supporters of the nationalist cause were in the majority in hawaii until 1898. d: mckinley’s predecessor, grover cleveland, refused to sign the treaty of annexation.