This is a fairly simple follow-on question that can be useful to assess your judgement and experience in terms of getting things done. You probably do not have enough information about the specifics of the role and company guidance at this stage so try and OPT for something a bit more vague that involves mentioning the brand or client’s needs and what has been previously discussed. For example, try something like:
“my priorities would differ according to the needs of the client and the resources available at the time. In my own time I prioritise according to… whereas for an event I use the client and company to guide what is most important and set key milestones right from the start”
This WAY you get the best of both worlds. You can also draw on any past experience in planning EVENTS, or even in managing your workload for college or in life in general. This is a good opportunity to MENTION your project management skills and how you organize your workload to hit every deadline. Mentioning things like project timelines, calendar notifications, to-do lists, productivity tools and so forth may be relevant here too.