Assertion (A): The Regular soils of the Deccan Trap are black in Colour.
Reason (R): They are rich in Humus.

Select correct answer from the codes given below:

Codes:

A) Both A and R are true and R is the correct Explanation of A

B) Both A and R are true but R is not the correct explanation of A

C) A is true but R is false

D) A is false but R is true

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 1999 (GS Paper I)