Concept:ICT systems are built from physical devices, programs, and communication links.
Explanation:ICT stands for Information and Communication Technology.
Its key components are:
Hardware — the physical parts like computers, keyboards, and monitors.
Software — the programs and applications that tell the hardware what to do.
Networks — the connections that allow devices to share data and communicate.
Together, these components support processing, storage, and communication of information.
Answer:D. Hardware, software, and networks