ABSTRACT
Choose the pair of pictures that are related to each other in the same way the top two pictures are related. Circle the correct pair. https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781003279723/7cbaab11-8041-4f7a-96e8-cfa575771881/content/fig20_Unfig_001.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>