pplication; (c)any person who, having been a citizen, has renounced his citizenship; (d)any person who, but for renunciation of citizenship, would have become a citizen by virtue of section 90; (e)any person who is married to any such person as is mentioned in paragraph (b), (c) or (d); (f)any person who - (i)was married to a person who but for his death would have become a citizen by virtue of se