Albert's Pretzel Baking Company Used to Have Four Workers Who

Multiple Choice

Albert's Pretzel Baking Company used to have four workers who were each in charge of making their own pretzels from start to finish.Now,one worker mixes the dough,another shapes it,the third puts the unbaked pretzels into the oven and the fourth removes the finished product.Output has doubled.This is an example of

A) neutral technical change.
B) labor-saving technical change.
C) division of labor.
D) economies of scale.