Which detail would be most relevant to this central idea

Summer is the most fun season, because there is so much to do

The most relevant detail to support this central idea could be the activities or events that are available during the summer season.

The most relevant detail to support the central idea that "summer is the most fun season, because there is so much to do" would be a list of specific activities or examples of things that one can do during the summer season. This could include things such as going to the beach, having barbecues, going on vacations, participating in water sports, attending outdoor concerts or festivals, enjoying longer days for outdoor activities, and so on.

The most relevant detail to support the central idea that "Summer is the most fun season, because there is so much to do" would be examples of the various activities and events that make summer enjoyable. These could include details about beach trips, water sports, outdoor concerts, barbecues, vacations, and other recreational activities that are commonly associated with summer. By providing specific examples of the multitude of things to do during summer, it strengthens the central idea that summer is the most fun season due to the abundance of enjoyable activities.