In the context of teaching English through the lens of African American Vernacular English (AAVE) or Ebonics, sociolinguist William Labov provided crucial insights. Analyze the following statements concerning the linguistic legitimacy of AAVE and its role in education.

I.AAVE is a systematic, rule-governed variety of English with its own complex grammar (e.g., habitual "be", copula deletion), and not a collection of random errors or "broken" English.
II.The "Bridge Approach" suggests using AAVE as a bridge to learning Standard English, validating the student's home language while teaching code-switching skills explicitly.
III.Teachers should correct every instance of AAVE in oral communication immediately to prevent fossilization, as acknowledging non-standard dialects in the classroom legitimizes incorrect grammar.

Is/Are correct the statement(s):