Under Section 124 Companies Act 2013, unpaid dividend (declared but not paid/claimed) must be transferred to a special account within:

1. Section 124(1) Companies Act 2013: 'Where a dividend has been declared by a company but has not been paid or claimed within 30 days from the date of declaration to any shareholder entitled to the payment of the dividend, the company shall, within 7 days from the date of expiry of the said period of 30 days, transfer the total amount of dividend which remains unpaid or unclaimed to a special account to be opened by the company in that behalf in any scheduled bank to be called the Unpaid Dividend Account.' 2. Section 124(5): any money in the Unpaid Dividend Account that remains unpaid/unclaimed for SEVEN YEARS shall be transferred to the Investor Education and Protection Fund (IEPF) established under Section 125. 3. Section 124(6): shares in respect of which dividend has not been paid or claimed for 7 consecutive years shall also be transferred to IEPF. 4. Hence option B is correct. _Source: Companies Act 2013 (Act 18 of 2013), Govt. of India MCA — Companies Act 2013, Section 124 (Unpaid Dividend Account)_