The connotation of information resources includes the following parts:( )
选项：

A:
A: The collection of useful information that has been processed and processed orderly and accumulated in a large amount in human social and economic activities,
B:
B: the collection of information producers that produce information for a certain purpose,
C:
C: the collection of information technology that processes, processes and transmits information,
D:
D: 其他信息活动要素的收集（如信息设备、设施、信息活动资金等）