"China said on Monday that U.S. high altitude balloons had flown over its airspace without permission more than 10 times since the beginning of 2022, drawing a swift denial from Washington." Reuters

https://www.reuters.com/world/china/china-says-us-flew-more-than-10-high-altitude-balloons-over-chinese-airspace-2023-02-13/

What is true here?

This resolve to all answers I am 95% confident of:

• There were some high altitude balloons that we aren't confident are spy ballons without permission (eg the US government admits this or the Chinese government/other actor provides conclusive proof)

• There were some spy balloons (eg the US government admits this or the Chinese government/other actor provides conclusive proof)

• There were no high altitude/spy ballons without permission (eg US government provides conclusive proof)

• I am uncertain

Note the first two options cannot both resolve