The answer is letter A Grand master flash. He invented the quick mix theory involving the blend of back spinning, phasing, double backing and cutting between scratching or as called as turntables which is the art of manipulating sounds and creating sound effects. I hope the answer will help you.
Maintaining Economic Self Sufficiency
Imperial Civil Service Examination Established in 605 CEwas open to all male citizens, was based a great deal on Confucianism, gave even common herd a change to work in government, and was was very popular with the working class, and made sure the most excellent and brightest worked in government.hope it help