Which of the Following Is a Suitable Description of the Term

Which of the following is a suitable description of the term 'economies of scope'?

A) The use of several inputs to produce one common output.
B) The ability to generate cost savings by producing more than one output with the same inputs.
C) The ability to lower average operating costs by expanding the number of outputs.
D) The ability to lower average operating costs by lowering the number of outputs.