ICAO's Annex 16 Covers Environmental Protection and Can Be Broken

ICAO's Annex 16 covers environmental protection and can be broken down into four volumes, which are

A) Aircraft noise, Aircraft engine emissions, Aeroplane CO₂ Emissions, CORSIA
B) Aircraft pollutants, Aircraft sound, Aeroplane GHG emissions, CORSIA
C) Aircraft imagery, Aircraft sound, CORISA, Aeroplane GHG emissions
D) Aircraft discharge, Aircraft heat exhaustion, Aeroplane CO₂ Emissions, CORSIA
E) None of these