Which of the following describes the range of f(x)=∣x−3∣+∣x+3∣f(x) = |x-3| + |x+3|f(x)=∣x−3∣+∣x+3∣?
y\q6y \q 6y\q6
y\q0y \q 0y\q0
All real numbers
y\q3y \q 3y\q3