The correct answer is Strophic.
In a strophic song, the same melody is repeated for each verse or stanza of the lyrics, which is a common structure in many songs. A rondo, on the other hand, features a recurring theme interspersed with different sections. A symphony is a complex orchestral work usually in multiple movements, and recitative is a style of delivery in opera or oratorio that mimics speech and is not characterized by repeated melodic material in the way strophic songs are.