Option 1: Marginal utility -> This is the additional satisfaction from consuming one more unit, not total satisfaction.
Option 2: Total utility -> This represents the sum of satisfaction from consuming all units of a commodity.
Option 3: Average utility -> This is total utility divided by number of units consumed.
Option 4: Maximum utility -> This refers to the highest possible utility level, not the aggregate satisfaction.
Hence, Option 2: Total utility -> Total utility is the complete satisfaction a consumer derives from consuming a given quantity of a commodity. It is the sum of utilities derived from each unit consumed. For example, if consuming 3 apples gives satisfaction of 10, 8, and 6 utils respectively, the total utility is 24 utils. Total utility typically increases at a decreasing rate and may eventually decline due to the law of diminishing marginal utility. -> correct