Which one among the following is not a privilege or right of a holder-in due course under Negotiable Instruments Act?

Correct option is D

A holder in due course under the Negotiable Instruments Act is entitled to certain rights and privileges to protect their interests. However, the estoppel against denying the genuineness or validity of payee’s endorsement is not explicitly covered as a privilege or right for a holder in due course. The privileges primarily focus on the authenticity of the instrument and the ability of prior parties to dispute certain aspects of the instrument.
Holder in due course acquiring the instrument for consideration and in good faith gets the following rights under the act:
1. Holder in due course can file a suit in his name against the parties liable to pay. He is deemed prima facie to be the holder in due course (Sec 118)
2. The holder in due course gets a good title even though the instruments were originally stamped but was inchoate instrument (Sec 20). The person who has signed and delivered an inchoate instrument cannot plead against the holder in due course that the instrument has not been filled in accordance with the authority given by him. The validity of the instrument as originally made or dawn cannot be denied by the maker of the drawer of a negotiable instrument or by the acceptor of a bill of exchange for the honour of the drawer (Sec 120).
3. The maker of a note or an acceptor of a bill payable to order cannot deny the payee's capacity to endorse the same at the date of the note or bill (sec 121).
4. The endorser is not permitted as against the holder in due course to deny the signature or capacity to contract of any prior party to the instrument (Sec 122).