If the marginal utility of commodity is equal to its price, then

Explanation

Consumer equilibrium is achieved when the marginal utility per unit of price is the same for all goods or commodities that the consumer is consuming. Marginal utility represents the additional satisfaction or benefit derived from consuming an additional unit of a good, while the price represents the cost of obtaining that unit. When the marginal utility of a commodity is equal to its price, it suggests that the consumer is allocating their budget in such a way that the last unit of the commodity provides the same level of satisfaction as its cost. This indicates that the consumer has optimized their consumption and is in equilibrium.