Inner margin of a book or document refers to (A) foot note (B) colophon (C) gutter (D) swash Correct Ans: (C) Explanation:Designers call the inner margin of a book the gutter. It refers to the space between two pages near the spine. Publishers include it in layouts to prevent text from vanishing into the binding. This extra space makes the book easier to read and handle. Meanwhile, footnotes give extra information at the bottom of a page. They do not relate to margins. Similarly, a colophon includes publishing details but appears at the end of a book. It never concerns layout space. Also, a swash adds flair to fonts but plays no role in margin design. Clearly, only gutter accurately fits the definition of the inner margin. Therefore, you should always choose it when the question asks about space near the spine of a book. Every publisher considers the gutter during layout to ensure readability. Without it, readers struggle to view all the text near the center fold. So, to sum up—designers use the gutter to keep content readable, printers rely on it to bind books correctly, and readers benefit from easier navigation.