The phrase "when I was growing up” uses an informal English in the excerpt.
This refers to the writing or speech that is marked by a casual, familiar and generally colloquial use of language.
Hence, the phrase "when I was growing up” uses an informal English in the excerpt.
Therefore, the Option D is correct.
Missing options "limited my perception” “her English reflected the quality” “she expressed them imperfectly” “when I was growing up”
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