The distinctive character of tropical red soil is BEST described as?

A.

deep, highly leached,with high kaolin clay and iron content

B.

deep, deep, humus-rich, with high kaolin clay and abundant iron concretions

C.

deep, deep, humus-rich, dark-coloured, with distinct cacareous horizons

D.

deep, acidic with high kaolin clay content and weatherable minerals

Correct answer is A

No explanation has been provided for this answer.