Suppose that on Wednesday the cost of inputs summed to $2400, and the value of outputs summed to $4,800. For which of the following values on Thursday will productivity stay the same?

Select one:

a.Inputs = $4000, outputs = $2000

b.Inputs = $5000, outputs = $11,000

c.Inputs = $4000, outputs = $8500

d.Inputs = $10,000, outputs = $4000

e.Inputs = $12,000, outputs = $24,000