Which of the following is a traditional dish from Korean cuisine?

The correct choice, kimchi, is a staple of Korean cuisine, known for its distinctive flavors and health benefits. It is typically made from fermented vegetables, most commonly napa cabbage and Korean radishes, flavored with a variety of seasonings such as chili pepper, garlic, ginger, and salt. Kimchi not only serves as a side dish but is also integral to many Korean recipes and is celebrated for its probiotic properties.

Sushi, while popular in Asian cuisine, specifically originates from Japan and involves vinegared rice combined with various ingredients, including seafood. Lasagna is an Italian dish made from layers of pasta, meat, cheese, and tomato sauce, which is distinctly different from traditional Korean fare. Fajitas, on the other hand, are a Mexican dish typically consisting of grilled meat served with toppings like salsa and sour cream, again highlighting a completely different culinary tradition. Hence, kimchi stands out as the representative traditional dish from Korean cuisine in this context.