The question is incomplete, but based on the options, it is likely asking for the difference between Gross Domestic Product (GDP) and Gross National Product (GNP).

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31. The question is incomplete, but based on the options, it is likely asking for the difference between Gross Domestic Product (GDP) and Gross National Product (GNP). C. The difference between the gross domestic product (GDP) and Gross National Product (GNP) is net income from abroad. Gross National Product (GNP) is calculated as GDP plus net income from abroad (income earned by domestic residents from foreign sources minus income earned by foreign residents from domestic sources).

32. C. Location of firms of an industry is not influenced by nearness to the source of money supply. While access to finance is important for firms, their physical proximity to banks or financial institutions (the "source of money supply") is generally not a primary factor in location decisions. Modern financial systems allow firms to access funds remotely. Factors like raw materials, labor, markets, and government policies are much more influential.