I have a problem in economics on gaining more Consumer Surplus. Please help me in the following question. Sushi lovers would be most probable to gain more consumer surplus as an outcome of rises in the: (i) Price of the steamed rice. (ii) Supply of sushi. (iii) Incomes of sushi producers. (iv) Salaries of sushi chefs. (v) Population of the sushi lovers.
Select the most precise answer.