A large company wants to find out what team- building activity its employees prefer. Which of the following samples can give the most valid generalization?

A. all 624 female employees in the company
B. all employees who have worked in the company for 5 years or more
C. A group with one member from each department
D. 400 randomly chosen employees from the list of all employees

D. 400 randomly chosen employees from the list of all employees

This sample would be the most representative because it includes a diverse group of employees from different departments and years of experience. It avoids bias towards a specific group within the company.