I need help with this scenario.

Questions to response to this case: indicate what would be the relevant population and the most appropriate sampling design. Be sure to give the reasons for your answers.

Scenario:

A consultant had administered a questionnaire to some 285 employees using a simple random sampling procedure. As she looked at the responses, she suspected that two questions might not have been clear to the respondents. She would like to know if her suspicion is well-founded. State the relevant population and the most appropriate sampling design. Be sure to discuss the reasons for your answers.