Correct option is A
Liberal – Open to new ideas, favoring progress and reform, especially in politics
Hindi meaning: (उदारवादी)
Example: She held liberal views on education and supported progressive reforms.
Synonyms – Progressive, open-minded, reformist.
Antonyms – Conservative, traditionalist, orthodox.
Meanings of all options with Hindi (one-word) meanings:
(a) Conservative – Opposed to change; holding traditional values.
(Hindi: रूढ़िवादी)
Correct antonym of "liberal"
(b) Tolerant – Accepting of different views or practices.
(Hindi: सहनशील)
(c) Republican – Member of a political party or one who supports a republic.
(Hindi: गणराज्य समर्थक)
(Not necessarily an antonym)
(d) Philanthropist – A person who promotes the welfare of others, especially by donating money.
(Hindi: परोपकारी)
Correct answer is (a) conservative, as it is the direct opposite of liberal in both political and ideological contexts.