which item has a predefined function? a toothbrush a piece of plywood

which item has a predefined function? a toothbrush a piece of plywood
Answer
Brief Explanations:
A toothbrush is designed for the specific purpose of brushing teeth, which is its predefined function. Plywood is a material that can be used for various purposes like construction, furniture - making etc., and does not have a single, specific predefined function like a toothbrush.
Answer:
a toothbrush