Answer:d)Visual interactive simulation (VIS)
Explanation:Visual interactive simulation (VIS) is the technology that works in a system for its development and simulation application for making the system display dynamic.
The dynamic display is preferred because it creates the interest in clients and is also used for the e-learning purpose. It also helps in decision making in accordance with competitive process.
LOT, Flash and WebEx does not provide the service for the e-teaching services with the dynamic display feature.Thus , the correct answer is option(d).
Mobile phones transmit and receive signals using electromagnetic waves, that is, wireless signal are electromagnetic waves which can travel through a vacuum, they do not need a medium or matter.
<h3>What are electromagnetic waves?</h3>
They are generated by electrical and magnetic particles moving at the same time (oscillating).
<h3>Characteristics of electromagnetic waves</h3>
- Network waves are electromagnetic waves.
- A mobile phone has coverage when it receives electromagnetic waves from at least one base station.
- They do not necessarily require a material medium for their propagation.
Therefore, we can conclude that electromagnetic waves are those that do not need a material medium to propagate and include, among others, radio, television and telephone waves.
Learn more about electromagnetic waves here: brainly.com/question/13803241
