Which of the following is considered a power source?

Solar power is considered a power source because it generates energy from sunlight, which can be converted into electricity to power various devices, systems, or equipment. This renewable energy source harnesses the sun's rays using solar panels, making it an essential alternative to fossil fuels and other non-renewable energy sources. Solar power is widely used in various applications, from residential solar panels that power homes to large solar farms that supply electricity to the grid, demonstrating its role as a crucial power source.

In contrast, data cables serve to transfer information rather than generate power, and design software is a tool meant for planning and drafting rather than supplying energy. Construction materials, on the other hand, are physical substances used to build structures and do not function as a source of energy. This distinction clarifies why solar power is the correct answer in identifying a power source.