What are the key characteristics of the graph of f(x)=cscx?

Select all correct statements.

a. The range of the function is (−∞, −1]∪[1, ∞) .

b. The y-intercept is (0,1).

c. Asymptotes occurs every π, beginning at x = 0.

d. The x-intercepts occur every π, with one x-intercept at (π2,0).