Which is the correct spelling of the missing word in the sentence: There was only one witness to the boy's ______________.

The correct spelling of the missing word in the sentence is "abduction." This term refers to the act of unlawfully taking someone away, typically by force or fraud, which aligns well with the context of the sentence involving a boy. Understanding the correct spelling is essential for clear communication, especially in a legal context where precision is crucial.

The other options reflect common misspellings, which can stem from mispronunciation or confusion with similar-sounding words. "Abducton" and "abduckion" do not adhere to the established spelling conventions of English vocabulary. "Abducsion" displays phonetic alterations that deviate from the standard spelling as well. Correct spelling ensures that your message is conveyed accurately without ambiguity.