What aspect of this excerpt most clearly marks it as a work of modernism?
grow old . . i grow old . .i shall wear the bottoms of my trousers rolled. shall i part my hair behind? do i dare to eat a peach? i shall wear white flannel trousers, and walk upon the beach. i have heard the mermaids singing, each to each.
a. it is written in a way in which one thought continues from one line to the next. b. it reflects the idea of being disconnected from the larger society. c. it alludes to mermaids to illustrate the speaker's obsession with the supernatural. d. it supports the idea that everything everywhere eventually changes.

The aspect of this excerpt that most clearly marks it as a work of Modernism is It supports the idea that everything everywhere eventually changes.

Explanation:

One of the characteristics of modernism is its break with tradition in every aspect, so it is also followed by the idea that there is no absolute truth since everything is changing from the old ways it worries about living life differently without following the conventionalisms, this piece of work uses those techniques to describe the scene.

c is a symbol. when bernice gets her hair cut, it is the authors way of showing the affects and demands of pier pressure and the over-all attitudes of people at the time.

i guess you are missing the idea that has to be supported, am i right?