Most nurses are women, but in the higher ranks of the medical profession women are in a______.

A．power of a lever that makes things easier
B．the way in which incremental income is generated
C．investing in closed-end municipal bond funds
D．influence of paying interest at short-term rates

A．factors in the tax savings and the munis enjoyed a yield advantage for them
B．municipal bonds could only be sold to those in the higher tax brackets
C．a tax savings stands for a smaller yield on their investment as an exchange
D．they could profit more from choosing the munis than a tax savings