What is the meaning of the idiom "green with envy"?

a.
feeling jealous

b.
feeling ill

c.
holding a grudge

d.
always wearing green

Green with envy. Full of desire for someone's possessions or advantages; extremely covetous. ... Shakespeare described envy as the green sickness ( Anthony and Cleopatra , 3:2), but the current phrase, dating from the mid-1800s, is the one most often heard. Also see green-eyed monster.

Afirefighter is a rescuer extensively trained in firefighting, primarily to extinguish hazardous fires that threaten life, property and the environment as well as to rescue people and animals from dangerous situations.  just cut some parts to make them shorter and add some of your facts or what describes them most. or what they are supposed to do.