The correct answer is: A. Two
Medium soil found in the south-western part of Haryana is divided into two categories: alluvial and loamy.
Alluvial soil is a type of soil that is formed from the deposition of sediments by water. It is typically found in river valleys and floodplains. Alluvial soil is generally very fertile and is well-suited for agriculture.
Loamy soil is a type of soil that is composed of a mixture of sand, silt, and clay. It is typically found in areas with a moderate climate. Loamy soil is generally well-drained and is suitable for a variety of crops.
The other options are incorrect because they do not represent the correct number of categories into which medium soil found in the south-western part of Haryana is divided.