The correct options are
A This region has erratic rainfall.
B There is not enough water to grow crops.
C There is not enough water for drinking.
D Soil of this region has little water-holding capacity.
Salakamcheruvu is a drought-prone area because this region has erratic rainfall. There is not enough water to grow crops or for drinking and thus, crops dry up. Moreover, the soil of this region has little water-holding capacity.