Salda Industries Employs 500 Workers in the Factory

Salda Industries employs 500 workers in the factory.These workers produced 85,000 units in last year.Due to a special order,the units produced in the current year increased to 95,000 units.However,Salda produced these units without adding workers.How is that possible?

A) The plant had some unused activity capacity.
B) The employees were a flexible resource in this situation.
C) The labour cost associated with the additional units sold will be a relevant cost.
D) The employees worked overtime without pay.