Land manufacturing holds an average of 2 million in raw materials inventories, $ 1 million in work-process , and $3 million in finished goods. The cost of goods sold for the current year is expected to be about $ 25 million. Which of the following followings statements is correct?
a) On average , they carry more than 10 week supply
b)Their inventory turn rate is greater than 5.0
c) weeks of supply and inventory turn rates are positively correlated
d) Weeks of supply should be as high as possible and inventory turn rates should be as low as posible