A. Elvis Presley
B. Chuck Berry
C. Buddy Holly
D. Little Richard
What is the difference between hard rock and heavy metal?
To answer this question about the age of rock, you may need to provide more specific information or context. The age of rock can refer to different aspects, such as the geological age of a specific rock formation or the age of a specific rock sample determined through radiometric dating techniques. Please provide more details or rephrase your question so that I can assist you better.