MKS Instruments Engineering Co-Op interview questions

So firstly, role was clearly labelled as "Biomedical engineering co-op", which is why I applied. The interviewer then asked me why I applied if I'm a BME major since that is not what the co-op is about. Please label your positions correctly. Interview was pretty good otherwise, went over the technology and a little bit about myself. Followed up with me by the date promised.