In your guessing game, you replaced dashes in blanks when the user guessed a correct letter by using a string slice. Which line of code will replace the character with an index of n with the guessed letter?

Python string slices use square brackets, and the ending index is excluded. So `blanks[:n]` keeps the characters before index n, `letter` replaces the character at n, and `blanks[n+1:]` keeps the characters after it. This makes A, `blanks = blanks[:n] + letter + blanks[n+1:]`, the correct line.

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