​The table below lists unique structural modifications (column X) found in various plant genera (Column Y).​

​Select the option that correctly matches column X with column Y.​

Correct option is C

EXPLANATION-

Phylloclade (A)  - (ii) Euph​orbia
Phylloclades are flattened photosynthetic branches or stems that resemble leaves.
Example: Some species of Euphorbia  have plylloclade.
Cladode (B) - (iv)  Opuntia
Cladodes are also flattened photosynthetic stems but typically differ slightly from phylloclades in form and function.
Example: The genus Opuntia; it is a succulent plant that adapts to extreme climatic conditions. The aerial part of the plant consists of the cladodes.

Phyllode (C)  - (i) Acacia
Phyllodes are modified petioles (leaf stalks) that become leaf-like and perform photosynthesis, replacing the leaf blade.
Example: Acacia species have phyllodes instead of true leaves.

Inflated petiole (D) - (iii) Pistia 
The petiole (leaf stalk) becomes swollen or inflated to aid in flotation or other functions.
Example: Pistia (water lettuce) has inflated petioles to help it float on water.

So, the correct option is (c) - A-II, B-IV, C-I, D-III