I would appreciate help with the answers to all questions please. Thanks in advance.

For the following description of data, Identify Who and What are described by the data, and what the population of interest is. Some companies offer 401(k) retirement plans to employees, permitting them to shift part of their before-tax salaries into investments such as mutual funds. Employers typically match 40% of the employees' contribution up to about 6% of salary One company, concerned with what it believed was a low employee participation rate in its 401(k) plan, sampled 45 other companies with similar plans and asked for their 401(k) participation rates. Identify the Who described by the data. A. Employees at 45 companies with similar 401(k) plans O B. 401(k) employee participation rates O C. All companies with similar 401(k) plans O D. 45 companies with similar 401(k) plans Identify the What described by the data. O A. The number of companies O B. 401(k) employee participation rates O C. The number of employees O D. Employers matching percentage Identify the population of interest. O A. All companies with 401(k) plans O B. All employees that participate in 401(k) plans O C. All companies O D. All companies with similar 401(k) plans