Which of the following events in sir gawain and the green knight represents a deviation from the ideals of chivalry?
a.

king arthur accepts the green knight’s challenge.

b.

sir gawain keeps the magic girdle.

c.

sir gawain takes the green knight’s ax.

d.

the green knight reminds sir gawain of his promise

The event in Sir Gawain and the Green Knight that represents a deviation from the ideals of chivalry is optionn B. Sir Gawain keeps the magic girdle.

Chivalry refers to an informal, varying code of conduct developed between 1170 and 1220. It was related to the medieval Christian institution of knighthood; knights' and gentlewomen's behaviours were governed by chivalrous social codes.

what are the excerpts?

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.