If f(x)=∣x+3∣f(x) = |x + 3|f(x)=∣x+3∣, what is the range of fff?
(−∞,3](-\infty, 3](−∞,3]
[−3,∞)[-3, \infty)[−3,∞)
[0,∞)[0, \infty)[0,∞)
All real numbers