Big Brain Inc issues 1,000 shares of $50 par preferred stock for $250,000. The company is not required to buy back the preferred stock. However, the preferred stock includes a redemption feature that gives the holder the option to redeem the shares for cash at specified dates. This would be classified as ________ under U.S. GAAP and ________ under IFRS.

debt; equity

debt; debt

equity; debt

equity; equity