Costs Versus Benefits. Costs and benefits are key factors that all economic decision makers take into account. Families, small business owners and others weigh the benefits and costs of decisions related to purchases, investments, sales and other expenditures before making a decision.
An object pronoun, also called objective pronoun, functions as the object of a verb or preposition, as distinguished from a subject or subjective pronoun, which is the subject of a verb. Examples: He begged her to live with him.
An object is an instance of a class - it's a concrete 'thing' that you made using a specific class. So, 'object' and 'instance' are the same thing, but the word 'instance' indicates the relationship of an object to its class. This is easy to understand if you look at an example. For example, suppose you have a class House.