If $$\sqrt {x + \frac{x}{y}}= x\sqrt {\frac{x}{y}} {\text{,}}$$where x and y are positive real numbers, then y is equal to ?

If $$\sqrt {x + \frac{x}{y}}= x\sqrt {\frac{x}{y}} {\text{,}}$$where x

1.	If $$\sqrt {x + \frac{x}{y}}= x\sqrt {\frac{x}{y}} {\text{,}}$$where x and y are positive real numbers, then y is equal to ?
A.	${\text{x}} + 1$$
B.	${\text{x}} - 1$$
C.	${{\text{x}}^2} + 1$$
D.	${{\text{x}}^2} - 1$$
Answer» E.