Which resources most directly led to the development of early civilizations in river valleys? Select the two correct answers.

A. fertile soil
B. fresh water
C. metal ores
D. slaves
E. stone

The two correct answers are:

A. fertile soil
B. fresh water

The two correct answers that most directly led to the development of early civilizations in river valleys are A. fertile soil and B. fresh water. These two resources were vital for agriculture and the establishment of settled communities in river valley civilizations.