Select all of the true statements. Choose one or more: A. ?Up to a point, adding…

Select all of the true statements.
Choose one or more:
A. ?Up to a point, adding more workers increases the number of meals produced.
B. ?Adding more workers after a certain point causes output to go down. There is an optimal number of workers.
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C. ?Each additional worker adds less and less to the overall output.
D. ?If we want to produce the most output possible, we need to add the most workers possible.