I think your sentence will be correct if you replace your "1962, since which she has lived in North London" with either "B" or "C". Thus, Born of lbuza parents in Nigeria, novelist Buchi Emecheta moved to England in 1962 and has lived since then in North London" or "Born of lbuza parents in Nigeria, novelist Buchi Emecheta moved to England in 1962, since then she has lived in North London" But I wouldn't use the 'present perfect tense' in that sentence if the novelist has died. I wouldn't say 'has lived' if she is dead already.
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navkmoved to England in 1962 and lived since then in North London.Can you please point out what is the error in this sentence?'Since then' is a span of time from1962 until the present, so it requires the present perfect, not the simple past: