Which expressions describe the end behaviors of the function f(x)=2^x+3. modeled by the graph attached to this. Choose all that are correct.

As x increases without bound, f(x) approaches zero.

As x decreases without bound, f(x) approaches zero.

As x decreases without bound, f(x) approaches the line y = 3.

As x increases without bound, f(x) increases without bound.