The correct options are
B Red soil has little humus content.
C The depth of red soil found here is two to three feet.
D Red soil has little water-holding capacity.
The fields of Salakamcheruvu have red soil that run about two to three feet deep. The soil has low humus and nutrient content. Red soil also has less water-holding capacity. Hence, fields need to be left uncultivated for a few years after growing a crop.