Which excerpt, spoken by achilles, shows his capacity for grief?

a.
"mind me: when you feel the joy of battle in your heart, do not be over-bold."

b.
"drunkard, with the eyes of a dog and the heart of a deer! never fighting the front of the battle! "

c.
"what do you mean by this, aeneas? do you think to slay me? have the trojans promised to make you their king if you prevail over me? you will not find it an easy task."

d.
"i would that i could die this hour, for i sent my friend to his death—and i, who am greater in battle than all the achaeans, could not him."