Final answer:
Lacks necessary details to answer how many hours Lilly spent watching Bubble Guppies, making it impossible to determine the correct answer based on the provided information.
Step-by-step explanation:
The provided information does not include specific data on the time Lilly spent watching Bubble Guppies. Therefore, without additional context or data, it is not possible to determine the correct answer to how many hours Lilly spent watching the show. The choices provided (2 hours, 5 hours, 7.5 hours, 10 hours) cannot be evaluated as there is no relevant connection or calculation that can be made from the given details. The question appears to be missing necessary details or perhaps there was an error in the transmission of the question that led to incomplete information.