The graph of $y=2^{x}$ is displayed here, whose y-intercept=1 and all values > 0. Which single option below gives us the graph's domain?
Choices:
A.$x \geq 0$
B.$x>0$
C.All real $x$
D.$x<0$
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: The graph of $y=2^{x}$ is displayed here, whose y-intercept=1 and all values > 0. Which single option below gives us the graph's domain?
Choices:
A.$x \geq 0$
B.$x>0$
C.All real $x$
D.$x<0$
Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
Question: The graph of $y=2^{x}$ is displayed here, whose y-intercept=1 and all values > 0. Which single option below gives us the graph's domain?
Choices:
A.$x \geq 0$
B.$x>0$
C.All real $x$
D.$x<0$