A Part 2 prompt always carries several bullet points, the points in the task. Your job is to cover them.
Look at a real answer
For a prompt about a healthy habit, the transcript of a strong answer breaks down like this:
What the habit is. About three sentences. It is yoga, how they started, why they liked it.
The benefits. This is the longest section: more energetic, more focused during the day, positive impact on my mood, manage stress better, change the mindset for the day. Then another effect with two more.
Why they want to keep it. Very short: simple, inexpensive, highly rewarding. Three adjectives.
The surprise
Almost everyone is taught that the opening points (what, how) are short and the explanation must be long.
In this answer that is simply not the case. The reason for keeping the habit fits into three adjectives.
The real principle
What matters is that the answer is balanced. Where you have plenty to say, say it. Where you have less, keep it short.
No rule requires the explanation to be the longest part. What is required is that you do explain, that you extend beyond the bare point, not what proportion of the answer it occupies.
How to use this
Take your own recorded answer and ask:
- Did I explain, or did I only list?
- Which point did I underdo?
- Which point did I overdo?
- If I rebalanced it, what would I cut?