Option 4: (C), (B), (D), (A) -> The correct sequence for calculating GNP at Market Price is: First, Determine sales for the country (C) which provides the base data. Then, Calculate values of output (B) from those sales figures. Next, Deduct intermediate consumption (D) to avoid double counting and arrive at GDP at Market Price (value added approach). Finally, Add Net factor income from abroad (A) to convert GDP to GNP. This follows the formula: GNP at MP = GDP at MP + Net Factor Income from Abroad, where GDP is calculated using the value-added method by eliminating intermediate consumption from total output. -> correct