Someone help if you can !

My best guess would be that batch production is a smaller amount of product produced for testing. mass production would be a large quantity of the product made for selling. hope this helps

The theme of social protest remained a consistent focus for jacob lawrence throughout his career. in the 1960s lawrence was inspired by news reports and photographs, including images of segregated lunch counter sit-ins and stories of the   freedom riders in the civil rights movement. from the 1970s onward, lawrence's work focused less explicitly on contemporary social issues.