Explanation: The one thing that you must not do in answering a question is to give a one word answer. So the above answers avoid the first potential way to lose marks.
The answers are also 15 second long, which is long enough to answer the question in detail and at the same time short enough to stay within the recommended 1 minute for each topic. This then allows the examiner to ask all the 3 topic questions, and so gives the candidate the opportunity to get more marks.
If you plan to answer three 5 second sentences for each question in part 1 you will have enough time to answer all the questions. To recap:
A timing strategy for answering part 1 topic questions:
Review of Part 1 of the Speaking test