The optimum level of output of the firm is? by Sunday | Oct 22 | Economics JAMB | 0 comments A. BC B. OB C. OS D. BS Correct Answer: Option B – OB Users Also Read These:What is the unit price of the firm's output?If labour productivity in the cement industry is…A firm is at its optimum size whenAt optimum population level, a country has its?As the level of output increases; the average fixed…