Final answer:
The word in the poem 'We Grow Accustomed to the Dark' by Emily Dickinson that has a similar tone to 'grope' is 'a) Fumble', signifying a clumsy or uncertain search without clear direction.
Step-by-step explanation:
In the poem We Grow Accustomed to the Dark by Emily Dickinson, the word that conveys a tone similar to grope is a) Fumble. Both 'grope' and 'fumble' suggest a sense of searching or feeling around uncertainly without visual guidance. 'Grope' implies a reaching out or exploring with one's hands when one cannot see well, indicating a need to physically find one's way. Similarly, 'fumble' conveys the act of handling things in a clumsy manner or having difficulty finding one's way, typically due to a lack of clear sensory input or direction.