Why did you choose occupational therapy?
A generic response of helping people will not answer this question adequately. Answer the question personably. You could do a lot of things, show them why you want to do occupational therapy. Having the interviewer relate to your motivations will allow them to see that you have a strong will to do well in their program and as an occupational therapist (OT).
"I chose occupational therapy because occupational therapists can work with any population group in various settings, from practicing in hospitals to working in outpatient clinics. I have had a lifelong interest in health, but I narrowed in on occupational therapy after seeing it in practice for an aunt. An occupational therapist came to our home and worked with my aunt to help her learn how to feed herself after a bad accident. I will never forget watching my aunt slowly but surely reach new milestones herself. It wasn't all about what the medication could do, but the occupational therapist thought about my aunt as a person and what she was capable of doing with time and effort. After that, I knew that this is what I wanted to do."