Mercury Thermometer was invented by?

Mercury Thermometer was invented by?
A: Jansen
B: Daniel Gabriel Fahrenheit
C: None of these

Daniel Gabriel Fahrenheit invented the mercury in glass thermometer in 1714. This device allowed more precise and consistent temperature measurement compared to earlier instruments. Fahrenheit also created the Fahrenheit temperature scale which is still used in some countries today. His invention marked a major step in physics medicine and meteorology.