What is the range of the function?

The range (y) of the function is from negative infinity to infinity. According to the options I think it's A, all real numbers.
Answer: A
//Hope it helps.
Answer:
[tex]\{y | y \in R\}[/tex]
Step-by-step explanation:
The range is y-values that the function takes. Looking at these values (vertically, how far does the function go up and down?), the answer must be [tex]\{y | y \in R\}[/tex].