Read these lines from "Ozymandias."

I met a traveller from an antique land,
Who said—“Two vast and trunkless legs of stone
Stand in the desert. . . .

How does the use of the word trunkless affect the meaning of this text?

A: It shows that the speaker is an old man.

B: It signals to the reader that the story is imaginary.

C: It reveals that the statue is broken in pieces.

D: It indicates that the statue is quite valuable.