Read this excerpt from "You are Old, Father William" by Lewis Carroll. What is the subject of the excerpt?

"You are old," said the youth, "one would hardly suppose

That your eye was as steady as ever,

Yet you balanced an eel on the end of your nose-

What made you so awfully clever?"

ОА.

how humans see

OB.

features of the face

O c.

age differences

OD

sarcastic humor

No