Hi and welcome to Wrong Planet!
From my understanding, it depends on how you pronounce the abbreviation. For example, with the initialism 'NT', it begins with a vowel sound (as if the word is 'en-tee'), so 'an' would precede it. With an acronym like NASA though, it would be preceded by 'a' because you're pronouncing it as a whole word (beginning with the 'n' sound). I hope that makes sense (I'm not the best at explaining things like that
)!
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Your neurodiverse (Aspie) score: 129 of 200
Your neurotypical (non-autistic) score: 100 of 200
You seem to have both neurodiverse and neurotypical traits
AQ: 39 / 50