Final answer:
Oscar from Miami follows the tradition of the tooth fairy, which might be different from the tradition Pedro may follow in Buenos Aires, potentially in terms of where they place the tooth or in the type of tradition to receive something in return.
Step-by-step explanation:
The tradition Oscar experienced in Miami, where the tooth fairy takes a tooth and leaves a surprise, may be different from what Pedro experienced in Buenos Aires, Argentina. Various cultures have different traditions surrounding the loss of baby teeth. Based on the information provided, if the question is about what could be different for Oscar as compared to Pedro, the correct answer would likely be: Where they place the tooth or The tradition to receive something. It is common for children in the United States to place their lost tooth under the pillow for the tooth fairy, while children in some other countries have alternative traditions, such as placing the tooth in a glass of water, throwing it onto the roof, or even burying it.