From the following information about the regions A, B, C, state the kind of natural vegetation growing there and mention the name of a typical tree of the respective region:
A : Annual rainfall 100-200 cm. Trees shed their leaves in March and April.
B : Annual rainfall less than 50 cm. Trees are stunted and widely scattered.
C : Forests are found in submerged coastal plains, especially on the edges of deltas.
A : deciduous trees, teak.
B : desert vegetation, cactus.
C : littoral or tidal, sundari.