; (B) has at all times been a person of good moral character; (C) has never been convicted of a criminal offense in the United States; (D) in the case of an alien who is 18 years of age or older, but who is not over the age of 65, has successfully completed a course on reading, writing, and speaking words in ordinary usage in the English language, unless unable to do so on account of physical or developmental disability or mental impairment; (E) in the case of an alien 18 years of age or older, has accepted the values and cultural life of the United States