Since they've asked you to describe the *key* learnings and skills you've gained, I'd stick to 3-5 skills, depending on how much detail you want to go into. I don't believe STAR/CAR is too useful here and it would be best to be more descriptive.For the A&O question: Please describe the key learnings/skills you’ve gained through work experience, positions of responsibility, personal experience or extracurricular activities (250 words). How many skills would people recommend doing? Is it best to apply specific examples using STAR type structure or write very briefly about 3/4 skills and more descriptive?