The correct answer is "ใช้ดนตรีทันสมัย" (Uses contemporary music). This is not a characteristic of traditional folk songs, which typically use traditional instruments and melodies. Traditional folk songs often reflect the culture, lifestyle, and history of a particular community or region, and they are usually passed down through generations. The use of contemporary music would imply a more modern or updated style, which is not typically associated with traditional folk songs.