The correct options are
A Leaves are turned into spines.
B Stems become bulbous and full of water.
C Root systems are well developed.
Cacti (singular: Cactus), in order to survive in extremely dry weather, show certain types of modifications of the plant parts. These modifications are known as adaptations. Few of them are as follows:
1. Leaves are turned into spines.
2. Stems are modified to store water.
3. Root system is well developed.