Biology

The correct answer is: D.Gradualism.

Explanation:

Gradualism suggests that evolution occurs at a slow-but-steady pace through small, continuous changes over long periods of time. This is in contrast to other theories like punctuated equilibrium, which proposes that evolution happens in bursts followed by long periods of stability.

Here’s a quick overview of the other options:

A.Transformational theory suggests that species gradually transform over ...