Which of the following is an example of a braiding technique that enhances volume?

The full sew-in weave is a technique that enhances volume by adding additional hair extensions to the natural hair. This method involves sewing wefts of hair onto braided sections of the natural hair, which not only provides length but significantly increases volume as well. The fullness achieved through this technique is substantial, making it a popular choice among individuals looking to enhance their hairstyle with additional body and thickness.

Other techniques listed, such as the French braid, box braid, and microlink extensions, serve different purposes. The French braid is primarily a styling technique that creates a neat and sleek appearance rather than focusing on volume. Box braids can also provide some volume, but they do not have the same effect as a full sew-in weave because they rely on the amount and thickness of the natural hair being braided. Microlink extensions can add some volume but typically offer a more natural look and do not provide the same level of fullness as a full sew-in weave.