The act of creating something new and unique.Group of answer choicesProductionResearch and DevelopmentInventionInnovation

To determine which term best describes "the act of creating something new and unique," let's analyze each option provided, considering their definitions and relevance to the concept:

1. Production: This term generally refers to the process of creating goods and services, but it does not imply the creation of something new or unique. It focuses more on the output of existing designs and models.

2. Research and Development (R&D): This involves investigating and developing new ideas and products. While it entails innovation, it is a broader process that often leads to invention and innovation rather than being synonymous with creating something new in itself.

3. Invention: This is the act of creating something entirely new that has not previously existed. It typically refers to a unique device, method, process, or composition of matter.

4. Innovation: This term usually refers to the implementation of new ideas or improvements to existing products or processes. It can involve new variations of existing concepts but focuses more on improvements rather than the creation of something completely unique.

Based on these definitions, the term that most accurately reflects "the act of creating something new and unique" is Invention.

Final Answer

Invention