I think wave 4 is already done (at the location where you labelled "B", the Flat correction (3/3/5) already completed from the peak of wave 3 so wave 4 formation is the 3/3/5 Flat and ended at your "B".
PapaBadd
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@ChrisHoang, Yeah u maybe right,appreciate your comment,thank u.For me,im gonna stick to my assumption till the price action and structure proves me wrong.Thank u again.