In a business letter written in block style, where are all lines positioned?

In a business letter written in block style, all lines are positioned at the left-hand margin. This format is characterized by its clean and organized appearance, making it easy to read and professional. By aligning all content flush left, block style eliminates the need for indentations for paragraphs, providing a straightforward structure.

This style is widely used in professional correspondence because it presents information clearly and uniformly, reinforcing a sense of formality and ease of reading. The left alignment also allows for easy scanning of the document, which is advantageous for recipients who may have to read through multiple letters or documents quickly.

In contrast, options like centered, indented, or right-aligned do not conform to the block style format and would create an unstructured appearance, which is generally not preferred for business communications.