问题：
[单选题] The File Transfer Protocol (FTP) is a standard network protocol used for the transfer of computer （ ） between a client and server on a computer network.FTP is built on a （请作答此空） model architecture usi
A、browser-server
B、user- server
C、client-server
D、business -customer
参考答案：
C、client-server
● 参考解析
