Which of the Following Statements Is True

Which of the following statements is true?

A) Mrs. Fields cookie company trains all of its store managers in one place to achieve economies of scale, and producing all of its cookie dough at one location results in economies of scale.
B) Mrs. Fields cookie company trains all of its store managers in one place to achieve diseconomies of scale, and producing all of its cookie dough at one location results in economies of scale.
C) Mrs. Fields cookie company trains all of its store managers in one place to achieve economies of scale, and producing all of its cookie dough at one location results in diseconomies of scale.
D) Mrs. Fields cookie company trains all of its store managers in one place to achieve diseconomies of scale, and producing all of its cookie dough at one location results in diseconomies of scale.
E) Mrs. Fields cookie company headquarters is in New York City.