Answer:
FLOWERPOT 2 that was placed in the room without music
Step-by-step explanation:
This question portrays an experiment performed by Nick to test whether music helps daisies grow faster. Nick performed this experiment using two separate flowerpots; he placed the first flowerpot in a room with music and the other flowerpot in a room without music. This shows that the independent variable is the MUSIC.
However, in an experiment, the CONTROL GROUP is the group that does not receive the experimental treatment (music). Based on this, the FLOWERPOT 2 (containing daisy) PLACED IN THE ROOM WITHOUT MUSIC IS THE CONTROL GROUP.