Transitions largely help to convey which of the following in a video?

Transitions in video editing play a crucial role in establishing cohesion between different segments of a film or video. They help to create a seamless narrative flow, guiding the audience from one scene to another while maintaining the overall continuity of the story. When transitions are used effectively, they can enhance the emotional impact of the content, making it feel more unified and coherent.

While other elements like speed of scene changes, color grading consistency, and audio synchronization are important in video production, they do not specifically pertain to the primary function of transitions. Transitions are specifically designed to link scenes together, ensuring that the viewer can follow the storyline without abrupt disruptions. This is why cohesion is the key function that transitions serve in video editing.