Concept:The path labeled III shows the phase being identified on the system development life cycle (SDLC) diagram.
Explanation:The SDLC proceeds through stages such as study, feasibility study, system design, implementation, and maintenance.
Path III appears after the design phase, so it points to the stage where the designed system is turned into a working product.
This stage includes coding, testing, and installing the new system.
Therefore, the labeled path correctly matches the implementation phase.
Answer:D. system implementation