In India, rural incomes are generally lower than the urban incomes, which of the following reasons account for this? I=A large number of farmers are illiterate and know little about scientific agricultureII=Prices of primary products are lower than those of manufactured products III=Investment in agriculture has been low when compared to investment in industry

• A. I, ii, iii
• B. I, ii
• C. I, iii
• D. Ii, iii