Stacey Was at Work When Ann, Her Sister, Called to Confirm

Stacey was at work when Ann, her sister, called to confirm their dinner plan the following weekend at their aunt Hilda's farmhouse. Stacey said she would call Joe, her husband, and get back to her. However, when Stacey called her back, Ann could not hear most of what she said because Jennifer, Ann's daughter, was crying loudly in the background. Who is the first sender in this scenario?

A) Joe
B) Stacey
C) Jennifer
D) Ann
E) Hilda