How do I transfer money to MEXC?

Could you please provide a concise explanation on how to effectively transfer funds to MEXC? I'm a bit new to the cryptocurrency world and would appreciate a step-by-step guide on the process. I understand that security and speed are paramount, so I'm interested in learning about the most reliable and efficient methods to transfer my money securely into my MEXC account. Would you recommend using a specific cryptocurrency, or are there multiple options available? Additionally, what are the associated fees and estimated transfer times I should be aware of? Thank you for your assistance in navigating this process.