Choose the correct spelling of the missing word: "It was not _____________ who committed the crime."?

The correct spelling of the missing word is "apparent." This term is often used to indicate something that is clear or obvious. In the context of the sentence, it suggests that it was not clear or obvious who committed the crime, highlighting a lack of evidence or knowledge regarding the perpetrator.

The other spellings, "apperant," "aparent," and "aperant," are incorrect as they do not conform to the standard English spelling of the word and would not be recognized in formal writing or communication. The importance of using the correct spelling in any written context, especially in law enforcement, cannot be overstated, as precision in language is crucial for clarity and understanding.