Question

I saw you, Walt Whitman, childless, lonely old grubber, poking among the meats in the refrigerator.

Why does Ginsberg make an allusion to Walt Whitman in this excerpt?
to suggest a knowledge of Walt Whitman and his poetic devices
to suggest an interest in Walt Whitman and his shopping habits
to suggest a critical judgement against Walt Whitman and other poets
to suggest a familiarity and kinship with Walt Whitman and other outcasts

Answer 1

to suggest a familiarity and kinship with Walt Whitman and other outcasts

Explanation: Ginsberg evokes Whitman as a fellow, sympathetic figure—an influential predecessor and kindred spirit—placing him among lonely, marginalized people rather than criticizing him or literally describing his shopping habits.