A thick crimped fur that retains heat and can be quite soft describes which fiber?

• A. Silk
• B. Asbestos
• C. Wool
• D. Linen

Answer: (C)

Natural wool fibers have a distinctive crimp that helps explain warmth and softness. The crimp creates many tiny air pockets when wool is spun and woven, and those trapped air pockets act as insulation, helping the fabric hold in heat. That makes thick wool fabrics feel warm, even if they’re relatively lightweight. The way wool fibers vary in diameter also contributes to a soft, fluffy texture in many varieties, so they can feel quite soft to the touch.

Other options don’t fit this description. Silk tends to be smooth and lustrous with less bulk and insulation; linen is strong and crisp with less warmth; asbestos is a hazardous mineral not used for soft, warm textiles.

So the fiber described is wool.