Do hotels generally use wet or dry fire sprinkler systems? Why?

The underground garage is designed as a dry system, and other areas (except substation and communication room) adopt a wet system.

The difference between them lies in the different environmental conditions used.

Design a wet system with ambient temperature higher than 4 degrees and not higher than 70 degrees; Instead, design a dry system with ambient temperature below 4 degrees and above 70 degrees.

I hope this solution can be understood.