工业革命后社会生产力飞速提高，从本质上说明了( )

A．资本主义工业文明战胜封建主义农业文明是一大进步
B．工业革命使工人生产积极性倍增
C．资本主义消灭了阻碍生产力的一切因素
D．科学与生产紧密结合成效显著

Originally introduced by Netscape Communications, (1) are a general mechanism which HTFP Server side applications, such as CGI (2) , can use to both store and retrieve information on the HTTP (3) side of the connection. Basically, Cookies can be used to compensate for the (4) nature of HTTP. The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (5) .

（5）是（）

A.programs

B.applications

C.frameworks

D.constraints