The first civilizations in asia formed along the and river valleys around bc. a. indus; yangtze; 6000 b. indus; yellow; 3000 c. indus; yellow; 4500 d. yangtze; yellow; 2000

  B. Indus; Yellow; 3000

Explanation:  Characteristic of all ancient civilizations to begin their development near the great rivers. This is conditioned by the water supply, the possibility of irrigation, the possibility of life in general. Over time, such civilizations have developed and expanded, but the core of their survival has always been linked to one of the great rivers.

Thus, the first civilization in Asia was recorded in South East and South Asia, approximately at the same time as in the Middle East. The first civilization was Harappan, which developed in the valley of the Indus River in the third millennium BC. It did not take place after 1500 - 1200, due to natural catastrophes and nomadic incursions by other nomadic peoples.

d: their own individual powers within the new goverment