What is the branch of soil related with the origin and classification of soil?

Correct option is A

The correct answer is (a) Pedology.
Pedology is the branch of soil science that deals with the origin, formation, classification, and mapping of soils as natural bodies. It focuses on understanding soils in their natural context, including their development, properties, and relationships with the environment.
Other Options:
(b) Edaphology: This branch focuses on the soil’s role in supporting plant growth and its practical use in agriculture.
(c) Geology: The study of the Earth’s physical structure and substances.
(d) Petrology: The study of rocks, including their origin and formation.
(e) Mineralogy: The study of minerals, including their structure, properties, and classification.