This is trick because technically all but C are correct. If you can only choose one answer I would go with D.
1. The main elements of Japanese bushido are; justice,
courage, mercy, politeness, honesty and sincerity, honor, loyalty and character
and self control.
2. The main elements of European chivalry are faith,
charity, justice, sagacity, prudence, temperance, resolution, truth,
liberality, diligence, hope and valour.
3. The elements of bushido and chivalry would work well
for a code of chivalry in today’s world arecourage, politeness and honor.