Final answer:
The Wooden Skyscraper Bookcases by Paul Theodore Frankl is the Art Deco work that is part of the design collection of the Cincinnati Art Museum.
Step-by-step explanation:
The correct answer is Wooden Skyscraper Bookcases by Paul Theodore Frankl.
Art Deco is a style that emerged in the 1920s and flourished in the 1930s to 1940s. It combines traditional craft motifs with Machine Age imagery and materials. In this case, the Wooden Skyscraper Bookcases by Paul Theodore Frankl would be considered an Art Deco work as it incorporates both the traditional craft of woodworking and a modern, skyscraper-inspired design.