I have a problem in economics on what is the sum of market demand for a good. Please help me in the following question. The other things constant, market demand for the good is a sum of: (i) Firm’s utility-maximizing decisions. (ii) Amounts demanded by the households at different prices. (iii) Prices that individual would pay for different quantities. (iv) Amounts households demand at different income levels.
Choose the precise one from the above.