Which of the following statements is correct? a. if interest rates increase, all bond prices will increase, but the increase will be greater for bonds that have less price risk. b. long-term bonds have less price risk but more reinvestment risk than short-term bonds. c. relative to a coupon-bearing bond with the same maturity, a zero coupon bond has more price risk but less reinvestment risk. d. one advantage of a zero coupon treasury bond is that no one who owns the bond has to pay any taxes on it until it matures or is sold.

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.