Please, I need answers from textbook "Security Program and Policies: Principles and Practices" author: Sari Stern Greene. 2th edition

Q2- When should a company develop a vender Information Security Policy?

Q3- Some positions within a company require more detailed background checks than others. Provide an example of a high risk position within a company, and provide an example of a low risk position within a company. Why does the high risk position require a more detailed background check?

Q4- Select a company/organization of your choice. Refer their website and identify what sort of privacy policy they use, regarding the employee data.