Final answer:
The best supporting detail for the central idea that King views autism as a unique ability is option d, where she expresses that she values her autism and imagination and credits them for her achievements.
Step-by-step explanation:
The central idea of the text is that the individual, King, perceives her autism as a source of unique abilities rather than just a challenge. The detail from the text that best supports this idea is option d: "All in all, I wouldn't trade my autism and my imagination for the world. Because I am autistic, I've presented documentaries to the BBC." This statement directly reflects how King values her autism as an integral and positive part of her identity, which has enabled her to achieve things like creating documentaries for the BBC.