“we grow accustomed to the dark” is an example of free verse rhymed couplets iambic tetrameter prose

C). Iambic Tetrameter.

Explanation:

'Meter' plays a vital role in creating the melodic undertone and rhythm in the poetry that allows the readers to have a rhythmic experience while reading it, understand the structural patterns, and visualize the ideas.

Iambic tetrameter is illustrated as the meter in which a single line of poetry involves four iambic feet('a short or unstressed syllable is followed by a long or stressed syllable').

In the given example from Emily Dickinson's famous poem, 'iambic tetrameter' has been employed as it involves four iambs in it. She involves four pairs of iambic feet where one unaccented syllable is followed by an accented syllable. It allows her to create the intended tone and rhythm to encourage the disconsolate mood to convey the idea of 'people's struggle with the darkness in their lives.' Thus, option C is the correct answer.

c hydrophobia is the answer