Consider the following pairs: [Biodiversity]

Plant	Description
I. Cassava	Woody shrub
II. Ginger	Herb with pseudostem
III. Malabar spinach	Herbaceous climber
IV. Mint	Annual shrub
V. Papaya	Woody shrub

How many of the above pairs are correctly matched?

The correct option is Only three.

Let us analyze the correctness of each pair by examining their botanical descriptions:
• I. Cassava (Woody shrub): Cassava (Manihot esculenta) is a starch-rich root crop that grows as a woody shrub. It develops woody stems as it matures, making this pair correctly matched.
• II. Ginger (Herb with pseudostem): Ginger (Zingiber officinale) is a herbaceous perennial. Its erect, green shoots are not true stems but pseudostems formed by the tightly rolled bases of its leaves, making this pair correctly matched.
• III. Malabar spinach (Herbaceous climber): Malabar spinach (Basella alba) is a succulent, soft-stemmed vine. It is classified as an herbaceous climber, making this pair correctly matched.
• IV. Mint (Annual shrub): Mint plants are aromatic, herbaceous perennials (perennial herbs) rather than annual shrubs. Therefore, this pair is incorrectly matched.
• V. Papaya (Woody shrub): While papaya (Carica papaya) grows tall like a tree, it is botanically a large, fast-growing herbaceous plant (often referred to as a giant herb) rather than a woody shrub, because its trunk lacks true woody tissue. Therefore, this pair is incorrectly matched.

Consequently, only three of the five pairs (I, II, and III) are correctly matched.