system
A chat on subreddit /r/wallstreetbets
human
Because they're puts. Options are written by one side first and then sold to the other.

gpt
The buyer is not always the market maker though. In fact I would think most of the time the seller of the option is the market maker e.g. selling to a trader who wants to buy. That goes for puts or calls. How do you know in this case that the seller initiated the trade?