Ignition sources are so prevalent that removal of all of them is not considered a viable option when attempting to eliminate the possibility of a fire occurring.

• A. Water
• B. Fuel
• C. Ignition sources
• D. Oxygen

Answer: (C)

The main idea here is that preventing a fire often relies on controlling ignition sources because they are everywhere and impossible to remove completely. Since ignition sources cannot be eliminated in real life, safety programs focus on reducing their opportunities to cause ignition and on detection and protection measures to minimize risk. This is why the statement points to ignition sources as the element that’s not feasible to remove entirely, making it the correct focus.

Water, fuel, and oxygen are all parts of the fire triangle, but the sentence isn’t about removing those elements entirely. Water is a cooling agent, fuel is what feeds a fire, and oxygen is what supports combustion. In practice, you can manage these factors too, but the idea highlighted here is that ignition sources themselves are so pervasive that complete removal isn’t practical, so the emphasis is on controlling and mitigating ignition risks rather than trying to eliminate every possible ignition source.