Describe briefly what has motivated you to apply for this role?

I am very young, and not really experienced with these situations. However, I can tell you for a fact that every answer is going to be different depending on the person. I would recommend putting a detailed description of why you are in this position down on a document, then shortening it and making it a bit less detailed. Keep mostly your facts, and make sure that in the end you have made your final answer very brief, yet still rich in detail. Then put your final answer on your application. I hope this helped in anyway!