In "The Red Wheelbarrow" what is the pun William Carlos Williams used when he wrote, "so much depends upon a red wheel barrow"?

AThe word “wheelbarrow” is broken into “wheel” and “barrow”, adding to the sound of the poem.

BThe word “depends” is Latin meaning to “hang down”, which he uses in the form of the poem.

CThe word “much” is Old English meaning “more than is expected” and the reader is left wanting more after finishing the poem.

DThe word “upon” dates from 14th Century English and meaning “obsolete”, which is what Williams thought of Eliot’s poetry