Shown in the table are some cultivated crops (Column X) and the chromosomal ploidy (Column Y).

Column X	Column Y
A. Banana	i. Diploid
B Breadwheat	ii. Triploid
C. Brown mustard	iii. Tetraploid
D. Cauliflower	iv. Hexaploid
E. Sugarcane	v. Octaploid

Which one of the following options represents all correct matches between Column X and Column Y?

Correct option is D

Answer: (d) A–(ii), B–(iv), C–(iii), D–(i), E–(v)

Explanation

This question deals with the chromosomal ploidy levels of commonly cultivated crops.
Let’s analyze each crop carefully:

A. Banana → (ii) Triploid

Most cultivated bananas (Musa paradisiaca) are triploid (3n = 33).

Triploidy contributes to seedlessness and parthenocarpy, making bananas edible.
Correct.

B. Bread wheat → (iv) Hexaploid

Common bread wheat (Triticum aestivum) is hexaploid (6n = 42).

It evolved via hybridization among three ancestral species (A, B, and D genomes).
Correct.

C. Brown mustard → (iii) Tetraploid

Brown mustard (Brassica juncea) is an allotetraploid (2n = 36).

It arose by hybridization between B. rapa (AA genome) and B. nigra (BB genome).
Correct.

D. Cauliflower → (i) Diploid

Cauliflower (Brassica oleracea var. botrytis) is diploid (2n = 18).
Correct.

E. Sugarcane → (v) Octaploid

Cultivated sugarcane varieties (Saccharum officinarum) are highly polyploid, generally octaploid (8n = 80) or even higher.
Correct.