Lancaster Company has the following data available:

Transaction Units Purchased Unit Cost Units Sold
Beginning Inventory 500 $10
March 1 Purchase 200 $12
April 25 Sale 350
June 10 Purchase 300 $14
July 20 Sale 250
October 30 Purchase 350 $15
December 15 Sale 400

If Lancaster Company uses a perpetual LIFO inventory system, the cost of goods sold for the year is

Problem 3: access control pokeygram, a cutting-edge new email start-up, is setting up building access for its employees. there are two types of employees: managers and engineers, and there are three departments: security, networking, and human resoures. each employee works in a single department, and each department is housed on a different floor. managers are allowed access to any floor, while engineers are allowed access only to their own floor. there are three badge-operated elevators, each going up to only one distinct floor. every employee has one badge. pokeygram wants to use the best possible access control method in order to minimize delay for the elevators (a) access control matrix, 1. which of the following would you recommend that pokeygram use: (b) access control lists, or (c) capabilities? make sure to justify your answer. 2. what, if any, would be the benefits (and/or disadvantages) of using rbac (role-based access control) in this situation? keep your solution for this problem limited to 10-12 lines of text.