As given in the Maryanne Wolf's Five reading stages, the characteristic of a reader that is fluent is: "using reading as a tool to acquire new knowledge" (Option A)
Who is a fluent reader?
A fluent reader is one who has mastered the sounds and basic concept of words and their pronunciation and meaning.
It is thus right to state that "using reading as a tool to acquire new knowledge" is a sign that one is a fluent reader.
Learn more about fluent readers at;
https://brainly.com/question/22604436
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