Correct option is A
The correct synonym of the given word is (a) Authentic.
Genuine: Truly what something is said to be; sincere or real. (Hindi meaning: असली / सच्चा)
Example: The certificate was declared genuine by the authority.
Authentic: Of undisputed origin and not a copy; real. (Hindi meaning: प्रमाणिक)
Example: This is an authentic Mughal-era painting.
Synonyms: authentic, real, true, legitimate
Antonyms: deceptive, fake, false, counterfeit
Meanings of the given other options:
· (b) Deceptive: Giving a false impression (भ्रामक)
· (c) Fabricated: Falsely made up or invented (मनगढ़ंत)
· (d) Erroneous: Containing mistakes (ग़लत)