The correct answer is B. Systematic Geography approach was introduced by Alexander Von Humboldt whereas the regional approach was by Karl Ritter

Introduction
The regional approach in geography refers to the study of regions as distinct units of analysis. This approach emerged in the early 19th century and was developed by several geographers. Among them, Karl Ritter played a significant role in shaping this approach.

Development of the Regional Approach
Alexander Von Humboldt: Although Alexander Von Humboldt is often credited with laying the foundation of modern geography, his contributions were more focused on physical geography and exploration. He traveled extensively and conducted detailed scientific observations, but his work did not directly contribute to the development of the regional approach.

Ptolemy: Ptolemy was a Greek astronomer, mathematician, and geographer who lived in the 2nd century AD. His work, known as the "Geographia," provided a comprehensive understanding of the world at that time. However, Ptolemy's approach was not regional but rather based on a global perspective.

Ibn-e-Batuta: Ibn-e-Batuta was a Moroccan scholar and explorer who traveled extensively throughout Africa, Asia, and Europe in the 14th century. His travel accounts, known as the "Rihla," provide valuable insights into the societies and cultures he encountered. However, Ibn-e-Batuta did not develop a regional approach in geography.

Karl Ritter: Karl Ritter, a German geographer, is considered the primary founder of the regional approach in geography. He lived in the 19th century and developed a systematic approach to studying regions. Ritter emphasized the importance of studying the physical, human, and cultural aspects of regions and their interactions. He believed that regions should be studied as unique entities with distinct characteristics and dynamics.

Conclusion
In conclusion, the regional approach in geography was developed by Karl Ritter. Although other geographers, such as Alexander Von Humboldt, Ptolemy, and Ibn-e-Batuta, made significant contributions to the field of geography, it was Ritter who laid the foundation for studying regions as distinct units of analysis. His emphasis on the holistic understanding of regions and their interactions continues to shape the field of geography today.