D. Premonition. (A strong feeling that something is going to happen)
<span>C: Foreshadowing
I believe this (or D) is the best option. Allusion is a reference to a famous/historical literary or art work. Irony could be present, but I don't see much irony apart from the past, present, and future. Foreshadowing seems likely due to her end piece "if you don't plan for it".</span>
Many values but most importantly experience. This can cause a change in insight and viewpoint for a protagonist which ultimately causes a change in character, often for the better. Also friends collected along the way as well as an unforgettable experience :)