Step 1: Examine the relationship between the terms, which represent an evolutionary sequence from simple to complex.\[\begin{array}{rl} \bullet & \text{(C) Library Cooperation: The earliest concept, encompassing any agreement between libraries for collaboration (e.g., interlibrary loan).} \\ \bullet & \text{(A) Resource Sharing: A more organized concept evolved from cooperation, involving planned sharing of collections, staff, and services.} \\ \bullet & \text{(D) Networking: Utilizing technology to connect libraries, enabling efficient resource sharing on a large scale.} \\ \bullet & \text{(B) Consortia: The most formal stage, representing a formal library organization for networking and resource sharing, often legally structured and focused on joint electronic resource procurement.} \\ \end{array}\]
Step 2: Organize the concepts in evolutionary order.The progression is from informal cooperation, to structured sharing enabled by technology, and finally formalized institutionally.The correct order is (C) -> (A) -> (D) -> (B).