Given functions $f$:$RR,$ where $f(x)=x^2+4x+7,$ and $g$:$RR,$ where $g(x)=5x+2,$ which of the following functions is fog?

$f$@$g$:$RR,$ where $f$@$g(x)=25x^2+4x+11$

fog: $RR,$ where $f$@$g(x)=x^2+9x+9$

fog: $RR,$ where fog $(x)=25x^2+40x+19$

fog: $RR,$ where $f$@$g(x)=5x^2+20x+37$