Which of the following is not a cause of mutation?

A. Oncogenes

B. UV radiation

C. Errors during replication

D. Harmful chemicals

B. UV radiation

Explanation:

Actually, it is difficult ta say which one is not a cause because UV radiation also can cause mutations, and harmful chemicals also do mutation.

So, it's quite difficult, but if we think about the time duration, UV radiation takes a longer time than the other 3, so it can be called a not causing agent of mutation.

But, continuous UV radiation for a long time can cause mutation.