Using space isolation makes the viewer only look at the subject by?

Space isolation effectively directs the viewer's attention to the main subject by placing it in an environment that minimizes distractions. This technique typically involves using the surrounding space to enhance the subject's prominence. By isolating the subject, the composition creates a sense of focus and clarity, allowing the viewer to engage with the subject without interference from other elements within the frame.

In practice, space isolation might involve techniques like blurring the background or utilizing negative space around the subject to emphasize its features. This method draws the viewer’s eye directly to what is most important in the photograph, fostering an emotional or conceptual connection to the subject.

Other choices do not specifically address this technique. Full frame generally refers to the perspective or field of view captured, while background and repetition do not inherently focus the viewer's attention on the subject in the same way that space isolation does. Thus, space isolation is the correct answer as it directly outlines the method of achieving focused attention on a subject through compositional choices.