thanks for your response
i am looking forward for answer.i also don't like lengthy answers rather precise ,more points,relevant and one which scores is what i want in an answer
as regards latest research i think it may not contribute that much to an answer
as it requires to the point approach.research may help well in understanding trends.also i want to say that only write outline of answers here. so we have core knowledge of attempting question and study in right direction.to elaborate answer one has to use his own skills.if something which you think is worth mentioning for elaboration do mention it.if an answer requires elaboration you are welcome to write here.thanks again
looking forward to your answer

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