A Variable Factor of Production

When some factors of production are fixed,in order to increase production by equal amounts,a firm would need to add successively: A)smaller and smaller quantities of the variable factor. B)constant quantities of the variable factor. C)larger and larger quantities of the variable factor. D)larger and larger quantities of the fixed factors.

Which of the following factors of production is likely to be fixed in the short run? A)The location of the firm. B)The number of employee-hours. C)The amount of electricity consumed. D)The amount of paper used.