The correct answer is option A. No, because it fails the vertical line test.
The vertical line test is a method used to determine if a graph represents a function.
If any vertical line intersects the graph at more than one point, then the graph fails the vertical line test and does not represent a function. In the given case, a vertical line would intersect the graph at two points, indicating that it does not pass the vertical line test and is not a function. In other words, this tells that there are values of the independent variable associated with more than one value of the dependent variable, violating the definition of a function.
Therefore, the correct answer to this question is option A.