D1 and S1 denote the starting demand and supply curves for a normal product. They later shift to D2 and S2. Which combination of changes would cause the market equilibrium for the product to move from X1 to X2?
- Aa fall in the price of a raw material used in the manufacturing and a decrease in the price of a complementary good
- Ban increase in average consumer incomes and an increase in the level of an indirect tax imposed
- Can increase in the price elasticity of demand for the product and a fall in its price elasticity of supply
- Da rise in the population and an increase in the price of labour used in manufacturing