Final answer:
Frost's use of 'sigh' in 'The Road Not Taken' suggests future misgivings or complex emotions about his choices, reflecting the poem's themes of decision-making and its consequences.
Step-by-step explanation:
The line "I shall be telling this with a sigh" from Robert Frost's poem The Road Not Taken has been a subject of much interpretation. The prevailing view, option C, suggests that Frost anticipates future misgivings about the choices he made, underlying the poem's broader theme of the consequences of decision-making. The sigh represents a complex emotional response, possibly one of nostalgia, regret, or contemplation over what might have been had he taken the other road. This line captures the essence of the poem's reflective and poignant tone, further supported by its exploration of nature as both a backdrop for the narrative and a metaphor for life's journeys and decisions.