Which of the following Treasury instruments constitute interest-bearing obligations of the Treasury with maturities ranging from 2 to 10 years?

Treasury bills are short-term securities that are sold at a discount and do not pay interest in the traditional sense. Instead, they mature at face value, with the difference between the purchase price and face value representing the investor's return. Their maturities are typically less than one year, which disqualifies them from being classified as having maturities of 2 to 10 years.

Treasury bonds are long-term securities with maturities greater than 10 years, usually up to 30 years. While they do pay interest, their longer maturity period exceeds the specified range of 2 to 10 years outlined in the question, disqualifying them.

STRIPS are created by separating the interest payments and the principal repayment of Treasury securities, allowing them to be sold as zero-coupon bonds. Although they are considered U.S. government obligations, they do not fit the criteria of having maturities specifically ranging from 2 to 10 years, as each STRIP represents a specific cash flow rather than a standard maturity.