Which term describes a slow and broad tempo in music?

The term that describes a slow and broad tempo in music, which aligns perfectly with the characteristics of "largo," indicates a very slow and expansive style. This term is often used to convey a sense of grandeur and a spacious feel within the music, allowing for expressive interpretation. Largo tempos generally fall around 40-60 beats per minute, encouraging performers to take their time, creating a dramatic and emotional effect.

In contrast, andante denotes a moderately slow tempo, grave implies a very solemn, slow tempo that is often heavier in mood, and allegro describes a fast, lively tempo. Each of these terms conveys different pacing and emotional quality, but "largo" stands out specifically for its distinctively broad and slow nature, making it the correct choice for the question regarding slow and broad tempo.