Final answer:
A balanced structure with an even number of phrases and no loose ends is characterized by balance, which is an even use of elements throughout a work of art creating a sense of completeness and cohesiveness.
Step-by-step explanation:
A balanced structure with an even number of phrases and no loose ends is characterized by balance.
Balance is an even use of elements throughout a work of art, creating a sense of completeness and cohesiveness.
In this case, it refers to the arrangement of phrases in a way that is symmetrical and harmonious.