The two vices (Destruction of virtue) that Gawain said he committed as part of his adventure are:
This refers to the bad habits of a person that shows in his relationships and dealings with others and is the opposite of a virtue.
Hence, it can be seen that The way and manner in which he committed these vices were greedy for keeping the green girdle and then displayed covetousness by breaking his promise about keeping the girdle so that he not die.
Therefore, the correct answers are cowardice and covetousness as explained above.,
Read more about virtues and vices here:
https://brainly.com/question/1395186
#SPJ1