Here the interviewer is testing the extent of your research so if you’ve not prepared adequately then it will be obvious. Gather your research from the organisation’s website and see if you can find information on the department from corporate brochures and reliable media sources. If you find information that tallies with your own aspirations then it is important to say so. For example it might be the culture that attracts you or the company might be involved in specific projects or specialist areas that appeal to you. The interviewer wants to know that you’re a ‘good fit’ and that your ambitions match those of the organisation and that you can add value to the department.