Explanation:

- The highlighted word is "liberal." It generally means open to new ideas, favoring reform, or progressive.

- Option 1: Ineffectual

- Meaning: Lacking the ability to produce the desired effect.

- It is not an antonym to "liberal."

- Option 2: Conservative

- Meaning: Favoring traditional attitudes and values, resistant to change.

- This is the most appropriate antonym to "liberal."

- Correct Answer

- Option 3: Central

- Meaning: In the middle or of primary importance.

- It is unrelated to "liberal."

- Option 4: Hysterical

- Meaning: Overly emotional or irrational.

- It does not contrast with "liberal."