Final answer:
The best example of learning among the given options is a d. child being able to ride a bike. Learning involves acquiring knowledge and skills through experience, and riding a bike requires practice and experience to develop the necessary coordination and balance.
Step-by-step explanation:
The best example of learning among the given options is (D) A child being able to ride a bike.
Learning involves acquiring knowledge and skills through experience, and riding a bike requires practice and experience to develop the necessary coordination and balance. This process of learning how to ride a bike involves a relatively permanent change in behavior or knowledge that results from experience.