Hello!
The correct answer is D. All of the above.
Onboard systems using state of the art electronics monitor and control various Pollutants, including Hydrocarbons, carbon dioxide, and oxides of nitrogen. The systems are designed to measure the levels of these pollutants and take necessary actions to reduce their emissions.
Example:
For example, in modern cars, electronic sensors and control systems continuously monitor the levels of hydrocarbons carbon dioxide and oxides of nitrogen emitted by the engine, if the levels are exceed the supplements the system adjust fuel, air mixture, timing, or other parameters to reduce the pollutants.
Similarly, in industrial settings, advanced control systems, equipped with electronic sensors and actuators monitor and control the emissions of these pollutants this helps minimizing the impact of pollution on the environment and human health.
Overall on board systems using state of the art, electronics play a crucial role in monitoring and controlling various pollutants making them essential part of the pollutant control strategies.