Can I buy BNB in Binance?

Could you please elaborate on the process of purchasing BNB on Binance? I'm interested in understanding the steps involved in making such a transaction. Is it a straightforward process? Are there any specific requirements or verifications I need to complete beforehand? Additionally, what are the payment methods accepted by Binance for purchasing BNB? Also, is there a limit to the amount of BNB I can buy at a time? Finally, are there any fees associated with the purchase, and if so, how are they calculated? Thank you for your assistance in clarifying these points.