Match column A with column B.

i-b, ii-c, iii-d, iv-a

The correct answer is Option (3) – i-b, ii-c, iii-d, iv-a

Here are the correct matches for Column-A and Column-B:

i. Peptidoglycan - b. Bacterial cell wall

• Peptidoglycan is a component of bacterial cell walls.

ii. Pectin - c. Cell wall of fruits

• Pectin is a polysaccharide found in the cell walls of fruits.

iii. Chitin - d. Insect cell wall

• Chitin is a structural polysaccharide found in the exoskeletons of insects and other arthropods.

iv. Cellulose - a. Cell wall of plants

• Cellulose is the main component of plant cell walls.