Why does the SEC think XRP is a security?

I'm somewhat puzzled by the SEC's classification of XRP as a security. Could you elaborate on their reasoning? I understand that the SEC has a specific definition for what constitutes a security, but how does XRP fit into that definition? I'm particularly interested in how the SEC distinguishes XRP from other cryptocurrencies that are not classified as securities. Additionally, what are the potential implications of this classification for the crypto industry and investors? Thank you for your time and expertise.