Which of the following is a common use of fresh herbs in cooking?

Fresh herbs are widely recognized for their ability to enhance flavor and aroma in a variety of dishes. When used in cooking, they bring out and elevate the natural tastes of other ingredients, adding depth and complexity to the overall flavor profile of the meal. Many culinary traditions utilize herbs to create aromatic components that can transform a dish from simple to extraordinary.

While infusing oils is indeed a valid use of fresh herbs, it is more specialized than the broad application of enhancing flavor and aroma across an array of cooking scenarios. Additionally, serving as a garnish is typically a secondary purpose; while herbs may visually enhance a plate, their primary and most impactful role is in flavor enhancement. Increasing acidity is generally achieved through ingredients like citrus or vinegar rather than herbs themselves. Thus, the most accurate representation of the common use of fresh herbs is their role in enhancing the taste and smell of food.