Which principle of business writing emphasizes the ability to communicate in a clear manner?

The principle that emphasizes the ability to communicate in a clear manner is clarity. In the context of business writing, clarity is vital because it ensures that the message being conveyed is easily understood by the reader. When writing is clear, it avoids ambiguity and confusion, helping the audience grasp the intended information without difficulty. This principle encourages the use of simple language, straightforward structure, and an organized presentation of ideas.

While other principles like correctness, completeness, and conciseness each play important roles in effective communication, they do not focus specifically on the clarity of the message itself. Correctness pertains to grammatical accuracy and the absence of errors, completeness refers to providing all necessary information, and conciseness is about being brief and to the point. Clarity, however, is the foundation that supports all these elements by ensuring that the communication is not only accurate and complete but also easily understood.