Read these lines from the poem:
And sore must be the storm
That could abash the little bird
That kept so many warm.
I've heard it in the chillest land,
And on the strangest sea;
Yet, never, in extremity,
It asked a crumb of me.
What does "it" refer to in the last line?
(A) the little bird
B)the storm
(c) the chillest land
(D) the strangest sea