Which of the following best illustrates coherence in a paragraph?

Coherence in a paragraph is primarily determined by how well the ideas connect and flow from one sentence to the next. When sentences are structured to lead logically into one another, they create a cohesive narrative that guides the reader through the writer's thoughts. This logical progression helps the reader understand the relationship between ideas and follow the overall argument or narrative effectively.

In contrast, disjointed or unrelated ideas disrupt the flow of thought, making it difficult for the reader to grasp the main point. Information presented without transitions can also hinder clarity, as transitions serve to link ideas and signify changes in thought. While using a variety of vocabulary can enhance writing, it doesn't inherently contribute to coherence. The key to coherence is in the logical connection and clarity achieved through well-organized sentences, which is exemplified in the choice that emphasizes a logical flow.