The correct answer is interval.
C. musical composition
The correct answer is (B) interval; intervening episode, period, or space; anything that fills time between events; pause between two actions or acts of a play, etc.
Also, a short dramatic piece, particularly of a light character.
Interlude comes from Latin interludium (inter + ludium [play])
Examples of use:
- Short interludes of music were interspersed with listener call-ins.
- Two short musical interludes separated the three acts of the play.