I believe it's Hirsutism, maybe list options if there are any next time! :)
The answer will be 8.
Edit:
Sorry! I was wrong earlier.
An octet is when there is 8 electrons in the valence shell.
I hope this helped, and please mark brainliest! :)
The ocean takes up vast amount of heat from the sun in summer and releases it in winter, ameliorating summer and winter climate extremes downwind. ... When ocean currents change, they modify the sea surface temperature that the atmosphere sees, which drives anomalies in winds, weather and climate across the planet.
D) reacts with oxygen
All other are physical properties.