Topic: Synonyms,

Best Answer Explained in Below-:

The question asks for the English synonym of the Bengali word "নৈতিকতা," which translates to "morality" in English. The term "morality" refers to principles concerning the distinction between right and wrong or good and bad behavior. It encompasses the beliefs, values, and standards that guide individuals in making ethical decisions and judgments.

Let’s examine the options provided:

A) **Natue**: This appears to be a misspelling and does not correlate with any concept in ethics.

B) **Value**: While values relate to what is considered important or worthy in life, they are not synonymous with morality itself. Values can vary significantly between individuals and cultures and can influence moral decisions but do not define morality.

C) **Morality**: This is the correct answer as it directly translates the concept behind "নীতি" (niti) and "নৈতিকতা" (naitikota) in Bengali, which focuses on the standards of conduct and ethical considerations in society.

D) **Liberty**: This refers to the state of being free within a society from oppressive restrictions imposed by authority on one’s behavior or political views. Although connected to ethics in discussions about rights and freedoms, it does not define "নৈতিকতা."

In summary, "morality" is the most accurate English synonym for the Bengali word "নৈতিকতা," as it encapsulates the essence of ethical standards and principles.