Suppose the U.S. Treasury issued $50 billion of short-term securities and sold them to the public. Other things held constant, what would be the most likely effect on short-term securities' prices and interest rates? A. Prices and interest rates would both rise. O B. Prices would decline and interest rates would rise. OC. There is no reason to expect a change in either prices or interest'tates. OD Prices would rise and interest rates would decline. O E. Prices and interest rates would both decline