Question

The Knights of the Round Table express their solidarity by wearing a green girdle as Gawain does. Why does Gawain wear the green girdle?
A) as a symbol of his courage
B) as a mark of honor
C) to show his love for nature
D) as a symbol of his weakness

Answer 1

Gawain wears the green girdle as a symbol of his weakness - he failed to finish what was asked of him, and he started wearing the girdle to show his failure. 

Answer 2

it shows a symbol of his weakness