Which (if any) of the following scenarios is the result of a natural monopoly? Instructions: You may select more than one answer.
a. Patent holders of genetically modified seeds are permitted to sue farmers who save seeds from one planting season to the next.
b. Doctors in the United States are prohibited from practicing without a medical license.
c. There is one train operator with service from Baltimore to Philadelphia.
d. Coal is used as the primary energy in a country with abundant coal deposits.

Zeta corporation is a manufacturer of sports caps, which require soft fabric. the standards for each cap allow 2.00 yards of soft fabric, at a cost of $2.00 per yard. during the month of january, the company purchased 25,000 yards of soft fabric at $2.10 per yard, to produce 12,000 caps. what is zeta corporation's materials price variance for the month of january?

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.

What are consequences of rapid inflation? (select all that apply.) savings accounts become less desirable because interest earned is lower than inflation individual purchasing power increases, which results in an increase in demand. individual purchasing power decreases, which results in a decrease in demand. people postpone purchasing expensive items, such as homes, until prices drop.