Explanation

Fibre is the basic unit of raw materials used in making yarns. Fibres can be natural (such as cotton, wool, or silk) or synthetic (such as nylon or polyester). They are the building blocks of yarns, which are then used to create fabrics.

Other choices do not fit as well. Each has a reason why it does not answer the question correctly. Understanding why wrong answers are incorrect helps reinforce the right answer.

This knowledge is important for Home Economics. It helps in daily life and builds practical skills for managing homes and families effectively.