The third option, C, seems correct to me. This is because in Dylan Thomas' poem, it symbolizes night as death and light as life. Using poetic devices, he talks about his father who is on the verge of death (night) but should still defy his fate by clinging onto life (light) so that he doesn't go gentle into death.
Let me know if you need anything else. :)
- Dotz
The answer is clustered. hope this helps
The answer I believe it is : the main challenge in a story .