Before applying to the NHS, you most likely researched the organization to ensure it is where you want to work. The interviewers want to see that you were diligent and did your homework before applying, or at least before your interview. They want to see what you found interesting about the NHS and what made you pursue a career with the UK's largest employer. In your response, it is always good to highlight any accolades the NHS has received in the news, awards they have won, expansions they have made, or the NHS's core values, mission, and vision. Let the interviewers know why you are excited to work for their organization after learning what you did in your research.