Final answer:
The question does not provide enough information to determine Marcos' favorite fish.
Step-by-step explanation:
The question is about Marcos' favorite fish in Principal Perry's aquarium. The options are A) Sparkly blue one, B) Blobby pink one, C) Chubby red one, and D) Bubbly yellow one.
However, the given information does not provide any details about the specific fish in the aquarium. Hence, it is not possible to determine Marcos' favorite fish based on the options provided.
Learn more about Favorite fish in Principal Perry's aquarium