Explanation:

- Embolden: To make someone more confident or brave.

- Option 1: Give courage or confidence to somebody

- This is a direct synonym for embolden.

- It means empowering someone to be courageous.

- Correct Answer

- Option 2: Outfit

- Means a set of clothes or equipment.

- Not related to embolden.

- Option 3: Denying

- Means refusing to admit the truth.

- Opposite in meaning to embolden.

- Option 4: Illusive

- Means misleading or deceptive.

- Doesn't align with empowering or courage.