Cooking instructions are not only printed in the manual, they are often designed into the machines. A McDonald’s kitchen is full of buzzers and flashing lights that tell employees what to do.The evidence presented in this excerpt best supports the author’s claim that- McDonald’s is the leader in fast food innovation.- fast food restaurants use technology designed to reduce the need for skilled labor.- technology has helped improve the fast food industry.- the workers’ limited skills have forced fast food employers to rely on machines instead of people.