Answer:
[tex]\large\boxed{B.\ 5}[/tex]
Step-by-step explanation:
[tex]f(x)=x^2+1\\\\f(3)\to\text{put x = 3 to the equation of the function}\ f(x):\\\\f(3)=3^2+1=9+1=10\\\\g(x)=x\\\\g(2)\to\text{put x = 2 to the equation of the function}\ g(x):\\\\g(2)=2\\\\f(3):g(2)=10:2=5[/tex]
