Which of the following herbs is essential in Italian cuisine?

Basil is regarded as an essential herb in Italian cuisine due to its vibrant flavor and aroma, which complement a wide range of traditional dishes. It is particularly important in classic sauces such as pesto and marinara, where it contributes significantly to the dish's overall taste profile. Basil is commonly used in various Italian recipes, including pasta, salads, and pizza, making it a staple herb in Italian cooking. Its unique aromatic properties and ability to enhance both fresh and cooked dishes solidify its role as a cornerstone herb in this cuisine.