Simplify the complex fraction.

four over x plus three over open parentheses one over x closed parentheses plus three
(1 point)
Responses

twelve x plus four over x squared plus three x
Image with alt text: twelve x plus four over x squared plus three x

four x over three x plus nine
Image with alt text: four x over three x plus nine

four x over three x squared plus to x plus three
Image with alt text: four x over three x squared plus to x plus three

none of the above

four x over three x plus nine