I gave a very honest answer focusing on: Challenges in maintaining work life balance, sudden changes in priorities, being unable to bring projects to completion due to technical or other issues, wasted effort.
I explained that I would monitor each students action/learning plan and estimate how far they needed to get to meet the time constrainsts. I would contact them when they fell behind and try to re-establish their original aims and drivers for doing the programme. Based on this I would either have them back on track, or we would negoitiate another approach.
Most people answered with "because of the brand". I chose not to answer the same as everybody else, so as to stand out......I later got the feeling that I should have because when the regional recruiter was asked why he joined, he said "the brand"!