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

A. The word “wheelbarrow” is broken into “wheel” and “barrow”, adding to the sound of the poem.
B. The word “depends” is Latin meaning to “hang down”, which he uses in the form of the poem.
C. The word “much” is Old English meaning “more than is expected” and the reader is left wanting more after finishing the poem.
D. The word “upon” dates from 14th Century English and meaning “obsolete”, which is what Williams thought of Eliot’s poetry.

Question

In "The Red Wheelbarrow" what is the pun William Carlos Williams used when he wrote, "so much depends upon a red wheel barrow"? 

 A. The word “wheelbarrow” is broken into “wheel” and “barrow”, adding to the sound of the poem. 
 B. The word “depends” is Latin meaning to “hang down”, which he uses in the form of the poem. 
 C. The word “much” is Old English meaning “more than is expected” and the reader is left wanting more after finishing the poem. 
 D. The word “upon” dates from 14th Century English and meaning “obsolete”, which is what Williams thought of Eliot’s poetry.