Q. Which of the following is NOT essential for a behavioural trait to evolve by natural selection?
A. The behavioural trait differs among individuals
B. The behavioural trait is determined at least in part by genes
C. The behavioural trait influences reproductive success
D. The behavioural trait is determined entirely by genes
![Determine the correctness (or otherwise) of the following Assertion [A] and the Reason [R]](https://www.gkseries.com/blog/wp-content/uploads/2023/10/Determine-the-correctness-or-otherwise-of-the-following-Assertion-A-and-the-Reason-R.jpg)
