Polka King Gifts had the following costs in March when 400 ceramic statues were produced: materials, $4,200; hourly labor, $1,600; depreciation, $800; rent, $700; and other fixed costs, $500. If the production level changes to 500 units, how much will the total costs be? A. The fixed cost per unit is $3.75.B. The variable cost per unit is $14.50.C. The fixed cost per unit is $19.50.D. The total cost per unit is $14.50.E. None of these answer choices is correct.

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.