All points of the step function f(x) are graphed.
What is the range of f(x)?
A. −3, −2, −1, 0, 1
B. −2, −1, 0, 1
C. all real numbers such that −3 < y ≤ 1
D. all real numbers such that −2 < y ≤ 1
please help asap thank you so much
