Explanation:

- 'Tired' is to 'Exhausted' as a lesser degree is to a more intense degree of the same state.

- 'Sad' is a lesser degree of feeling, similar to how 'Depressed' is a more intense state of sadness.

- Option 1: Depressed

- This is the correct answer. It represents a more intense form of sadness.

- Option 2: Regret

- Regret is associated with feeling remorseful, not directly related to sadness.

- Option 3: Emotional

- Emotional is a broad term that encompasses various feelings, not specifically sadness.

- Option 4: Withdrawn

- Withdrawn implies being introverted or reserved, which could be a result of sadness but isn't a direct intensification of it.

“”