Correct Answer: Demat account

Solution : The correct answer is (d) Demat account.

A demat account is not a type of deposit account offered by banks. It is a type of account provided by depository participants (DPs) to hold and trade securities in electronic form. Demat accounts are primarily used for holding shares, bonds, and other securities in a dematerialized or electronic format. They facilitate the buying, selling, and transferring of securities without the need for physical certificates.