Do not go gentle into that good night, Old age should burn and rave at close of day; Rage, rage against the dying of the light. Though wise men at their end know dark is right, Because their words had forked no lightning they Do not go gentle into that good night.
What is the effect of the extended metaphor in the passage?
It sustains the image of old age.
It sustains the comparison of night to day.
It sustains the comparison of death to night.
It sustains the image of night.

"Do not go gentle into that good night" is the poem by Dylan Thomas. The poem is based on the fear of death among elderly people.

Metaphor in the passage

The metaphor is given as the figure of speech that is used to set the analogy between the objects.

The given paragraph is talking about the light and night in a day. The day is symbolized to the life of the person, where death has been analogized with death.

Thus, the metaphor extended in the passage is a comparison of death with night. Hence, option C is correct.

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