Which of the following is a type of space in dance?

In dance, the term "diagonal" refers to a specific type of spatial orientation that dancers can use during their movement. Diagonal can describe the direction of a dancer's body and the pathway taken through space, creating dynamic visual effects and enhancing the choreography's overall composition. Utilizing diagonal lines can lead to more interesting formations and can evoke a sense of depth and movement that engages the audience.

The other options provided do not represent types of space within dance as clearly as diagonal does. For instance, "static" describes the state of being still and does not convey a directional movement in space. "Sustained" typically refers to a quality of movement rather than the spatial aspect itself. "Quadrant," while it can relate to spatial division in some contexts, is less about the directional movement that dancers utilize to navigate through space, making "diagonal" the most appropriate choice for indicating a type of space in dance.