Hello can you please help me answer this assignment.

Determine whether the formula determines y as a function of x. If not, explain why not. x = 2y Does the equation describe y as a function of x? O A. No, because for the given formula, each x does not lead to a unique y. O B. No, because for the given formula, each x leads to a unique y. O C. Yes, because for the given formula, each x does not lead to a unique y. O D. Yes, because for the given formula, each x leads to a unique y