Which of the following would increase the demand curve for good G? 1. A situation where the price of good H increase, and good G is substitute of good H. 2. A situation where the price of good H increase, and good G is complemented of good H. 3. A situation where there is an increase in income, and good G is an inferior of good. 4. A situation where there is an decrease in income , and good G is a normal good