Biology

The correct answer is: A.Gradualism.

Explanation:

Gradualism refers to the idea that evolution occurs slowly and steadily over long periods of time through small, incremental changes. In the case of snakes evolving from reptiles with shorter legs, this gradual reduction of leg length over time is a perfect example of gradualism.

Here’s a brief explanation of the other terms:

B.Punctuated gradualism is not a commonly used te...