<span>Definition: the medieval knightly system with its religious, moral, and social code.
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Synonyms:knight errantry, courtly manners, knightliness, courtliness, nobility<span>
Etymology: </span>
<span>Middle English: from Old French chevalerie, from medieval Latin caballerius, from late Latin caballarius ‘horseman’ </span>
Since the 'inciting incident' is the one which starts all the problems in a literary work, the answer is B, 'establishment of the central conflict followed by the conflict increasing and a climax'.
<span>He introduces a major conflict.
Hope this helps!</span>