The statement "I know what to so when I read unfamiliar words. I always take time to do it." is the statement that states our ability to unlock the meaning of unfamiliar vocabulary words.
Basically, the strategy for unlocking the meaning of an unfamiliar word is to search the context of the sentence in which a new word appears for clues.
In other times, it can be easy to do because the author may have provided a definition or a synonym right there next to or near a term that you can use to unlock its meaning.
However in the options, the statement "I know what to so when I read unfamiliar words. I always take time to do it." is the statement that states our ability to unlock the meaning of unfamiliar vocabulary words.
Therefore, the Option B is correct.
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