Answer:
â˘When she sings "Rejoice,"
â˘The soprano follows with a disjunct (rising line)
Explanation:
"Rejoice greatly" is a classical piece from Handel's Messiah.
An aria, is a musical piece written typically for a solo voice with orchestral accompaniment in an opera or cantata.
â˘When she sings "Rejoice,"
â˘the soprano sings a disjunct (rising line).
As the choir sing "rejoice" there is a  passage of several notes sung to one syllable of text, as in Gregorian chant the form of A-B-A. It is an oratorio.