In ezra pound's poem "in a station of the metro," the image of flower petals on a wet bough is an example of a. nihilism. b. imagism. c. materialism. d. romanticism.

B.

Explanation:

Imagism was a literary movement in poetry originated in the early twentieth century. The movement emerged as a reaction against the romantic and Victorian poetry.

Imagism accentuates the usage of precise language and painting of visual pictures using words. The founder of imagism is considered to be Ezra Pound.

"In a Station of the Metro" is an imagist poem penned by Ezra Pound.

So, the correct answer is option B.  

i have heard the mermaids singing, each to each.

i do not think they will sing to me