Question

Explain please?

Answer 1

Which of the following is associated with diseconomies of scale?
a. Producing 1,000 lawn mowers costs $100,000 while producing 2,000 lawn mowers costs
$150,000.
b. 50 workers and 5 machines produce 1,000 units of output while 60 workers and 5 machines
produce 1,200 units of output.
c. 50 workers and 5 machines produce 1,000 units of output while 100 workers and 10 machines
produce 2,500 units of output.
d. Producing 1,000 lawn mowers costs $100,000 while producing 2,000 lawn mowers costs
$220,000.

The answer is D, but I'm not quite sure why.............