Rearrange the following sentences to get a meaningful paragraph :

A. But in our modern society, the action bias is less necessary for survival than it once was.

B. Our tendency towards action is something hardwired into us from our history as hunter-gatherers.

C. Thousands of years ago, immediate action was required for our evolutionary ancestors to survive.

D. This automatic impulse was once incredibly adaptive.

Option D is the correct answer.

Sentence C introduces the topic by explaining how, thousands of years ago, immediate action was critical for the survival of our evolutionary ancestors, setting the historical context for the discussion. 

Sentence B logically follows by connecting this historical necessity to human evolution, emphasizing that our tendency toward action is hardwired from our hunter-gatherer past. 

Sentence D then elaborates on the adaptiveness of this automatic impulse in historical contexts, reinforcing its value in ensuring survival. 

Finally, Sentence A concludes by transitioning to modern society, highlighting how the action bias, while once essential, is now less necessary for survival, providing a reflective and contemporary perspective to the discussion.