We are not accustomed to speaking of women having the authority of the priesthood in their Church callings, but what other authority can it be? When a woman—young or old—is set apart to preach the gospel as a full-time missionary, she is given priesthood authority to perform a priesthood function. The same is true when a woman is set apart to function as an officer or teacher in a Church organization under the direction of one who holds the keys of the priesthood. Whoever functions in an office or calling received from one who holds priesthood keys exercises priesthood authority in performing her or his assigned duties.