Suppose a tailor owns a coat shop that has a sewing machine and only one worker (the tailor himself). Currently, 80 coats are made and sold in the coat shop every year. If the tailor hires one more worker and another sewing machine, what is the most likely effect on the number of coats produced and sold annually?
a) It will remain the same.
b) It will decrease.
c) It will increase.
d) None of the above.
