## Precalculus (6th Edition)

The graph that is discontinuous in many points is the one in Option $B$. The graph's range is the set of integers. Inset notation, the range is $\left\{...-3, -2, -1, 0, 1, 2, 3, ...\right\}$.
The graph in Option $B$ has many gaps so it is discontinuous at many points. The function's values are $-3, -2, -1, 0, 1, 2, 3...$. Thus, the graph's range is the set of integers.