Think about the Article. How were the Chinese toothbrush from 1223 and William Addis’s toothbrush different?
A. The Chinese toothbrush used bristles made of cow tail hair, while Addis’s design used nylon.
B. The Chinese toothbrush used bristles from cow tail hair, while Addis’s design used horse tail hairs.
C. The Chinese toothbrush used bristles from horse tail hair, while Addis’s design used cow tail hairs.
D. The Chinese toothbrush used bristles made of nylon, while Addis’s design used horse tail hairs.
The correct answer is A. The Chinese toothbrush used bristles made of cow tail hair, while Addis’s design used nylon.
Explanation: The toothbrush developed in China around 1223 typically featured bristles made from the hair of a cow’s tail, which were attached to a bamboo or bone handle. In contrast, William Addis invented a more modern toothbrush design in the early 18th century that utilized nylon bristles, which are durable and effective for cleaning teeth. This significant change in materials marked an evolution in toothbrush design.