Read the selection below from “The Insufficiency of Honesty” by Stephen L. Carter and answer the question that follows. When I refer to integrity, I have something very specific in mind. Integrity, as I will use the term, requires three steps: discerning what is right and what is wrong; acting on what you have discerned, even at personal cost; and saying openly that you are acting on your understanding of right and wrong. The first criterion captures the idea that integrity requires a degree of moral reflectiveness. The second brings in the ideal of a person of integrity as steadfast, a quality that includes keeping one’s commitments. The third reminds us that a person of integrity can be trusted. Source: Carter, Stephen L. “The Insufficiency of Honesty.” Atlantic Monthly Feb. 1996: 74+. Print. Based on the passage above, which of the following reflects the correct use of quotation marks?

The correct option here, as I have found your question, would be: According to Carter, integrity "includes keeping one's commitments."

Here the quotation maks are used correctly as the example shows the grammatically correct way of using quotes in the mid of your sentence. You use quotes in your work to refer to the source and the words of another author. You can do that by either clearly showing it in a new paragraph with quotation marks, if it is a longer quote, or if you incorporate it into your sentence you like this.