please answer all questions:

4. Which of the following best describes the value of business models?

a. All of the choices

b. A tool for managing complexity

c. A process improvement tool

d. A planning tool

e. A communication tool

5. Which of the following describes how participants in a process are identified in BPMN?

a. Both Swimlanes and Pools

b. Gateways

c. Pools

d. Swimlanes

e. Message flows