What should be done if flare-ups occur during grilling?

When flare-ups occur during grilling, it's advisable to remove food from direct heat. This action helps to prevent the food from burning and maintains its quality. Flare-ups are often caused by fat dripping onto the heat source, which ignites and can create large flames. By moving the food away from the direct heat, you can control the cooking process better and avoid charring or uneven cooking.

Addressing the other choices provides insight into why they would not be appropriate responses. Ignoring flare-ups could result in burnt food and even present a fire hazard. Adding more fuel to the fire would exacerbate the situation by increasing the intensity of the flames, leading to greater risk. Sprinkling water directly on flames might seem like an effective way to extinguish them; however, it can cause oil and grease fires to flare up even more dangerously, posing a significant safety risk.