Information about Haulover Company is as follows: 2018 2019 Output (units) 200,000 200,000 Input quantities: Materials (pounds) 90,000 80,000 Labor (hours) 50,000 40,000 Input prices: Materials (per pound) $5.00 $6.00 Labor (per hour) 8.00 What is the partial operational productivity measure for materials for 2018? (Round the answer to two decimal places.) Oa. 1,60 Ob. 2.22 Oc. 1.42 Od. 1.80 9.00