Explanation:

- SUSTENANCE: It typically refers to something that provides nourishment or the means to support life, such as food and drink.

- Option 1 - Refreshment: This means something that provides energy or revitalization. It's somewhat related but not an antonym.

- Option 2 - Livelihood: Refers to means of securing necessities of life, like earning money. It aligns more with sustaining life rather than opposing it.

- Option 3 - Starvation: This means suffering or dying from lack of food. It's the opposite of sustenance, which supports life or nourishment.

- Correct Answer: Option 3 - Starvation

- Option 4 - Nourishment: Similar to sustenance, as it means something that promotes growth or health. It’s not an antonym.