In line 56, what does the third apparition mean by saying, "Be lion–mettled"? *
A. Wear coats of lion's fur.
B. Be strong like a big cat.
C. Roar loudly.
D. Act like a king.

THIRD APPARITION. Be lion-mettled, proud, and take no care. Who chafes, who frets, or where conspirers are.
line 56