please write in simple words and approx 150.

a. Describe and provide examples of dependent and independent demand. Describe the four basic types of inventories. b. Describe inventory turnover and how it can be used to manage inventory. c. What is big data? How can firms use big data to make better decisions? d. What is the purpose of the EOQ and the ROP? How can they be used together? What are the assumptions of the EOQ model? e. Explain whether the continuous review or periodic review inventory system is likely to result in higher safety stock. Which is likely to require more time and effort to administer? Why