Final answer:
Disco was an identifiable musical expression embraced by urban youth. The correct answer is A).
Step-by-step explanation:
The identifiable musical expression of the disco genre was embraced by urban youth. In the late 1960s and early 1970s, disco music became popular in urban areas, especially among young people. Disco music was characterized by a pulsating beat, catchy melodies, and lyrics that often celebrated dancing and the nightlife. It was commonly played in discotheques and dance clubs, providing a vibrant and energetic soundtrack for urban youth to express themselves and enjoy socializing. It emerged in the 1970s and became a popular nightlife movement associated with dance clubs, capturing the spirit of the younger generation in the cities during that time period.