Which statement regarding Treasury bills is correct?

Treasury bills, commonly referred to as T-bills, are indeed unique among Treasury securities because they do not pay periodic interest. Instead, they are sold at a discount to their face value and mature at par. This distinct feature means that T-bills provide returns to investors solely through the difference between the purchase price and the face value paid at maturity. This characteristic confirms that Treasury bills are the only types of Treasury securities that lack a stated interest rate, as they do not offer traditional coupon payments like Treasury notes or bonds.

Other options contain inaccuracies regarding T-bills. For instance, they are typically issued at a discount rather than a premium, and the range of initial maturities for T-bills includes 4, 8, 13, 26, and 52 weeks, but not 3, 12, 24, or 50 weeks. Additionally, T-bills actually carry the least interest rate risk compared to other Treasury securities such as notes and bonds, as their shorter maturities make them less sensitive to interest rate fluctuations. This understanding highlights the distinct nature of T-bills in the context of Treasury securities.