Which of the following actions can help avoid flare-ups while grilling?

Avoiding grease buildup in the grill is an effective action to help prevent flare-ups while grilling. Flare-ups occur when fat and grease accumulate on the grill and ignite due to direct heat, creating a sudden burst of flame that can easily char food and make grilling less controllable. By keeping the grill clean and free of excess grease, you reduce the likelihood of these flare-ups.

In addition, regularly cleaning the grill grates and the drip trays can aid in achieving a safer grilling environment. This maintenance practice ensures that any leftover food particles or oils are removed, preventing them from catching fire during cooking and allowing for a more consistent cooking experience.

Other options, such as using marinades with high sugar content, can actually exacerbate flare-ups because sugars caramelize and burn quickly. Grilling over direct high heat constantly can lead to more intense flames and potential flare-ups due to the proximity of dripping fats to the heat source. Lastly, using only charcoal does not inherently prevent flare-ups; it depends more on how the grill is managed and how accurately fat is contained during the cooking process.