One reason that a firm may experience increasing returns to scale is that greater levels of output make it possible for the firm to :

 d. All of the above are correct. ,................................................................

1. The correct answer was: d. All of the above are correct.. 

answer D ______________________________

Option (D) All of the above are correct

D    Is the correct answer

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d. All of the above are correct. lllllllllllllllllllllllllllllllllll

Thank you very much experts for your invitations 

The answer is : Option ( D )

All the above points !..................