C. \( a(c+b) \)

Did you know that the expression \( a(c+b) \) is an example of the distributive property in action? This property allows you to distribute \( a \) across the sum of \( c \) and \( b \), which would give you \( ac + ab \). It’s a fundamental concept in algebra that makes solving equations and simplifying expressions a breeze! In the real world, this kind of expression could represent financial scenarios. For instance, if \( a \) is the price per item, and \( b \) and \( c \) are two different taxes or fees applicable to that item, the expression \( a(c+b) \) helps you calculate the total cost of the item including both charges. It's incredibly useful when budgeting or determining final prices after varying costs!