Verify each function
Option A
x----> infinity -----> f(x)=1 (is a constant)
is not a solution
Option B
x----> infinity f(x) ----> infinity
Is a solution
Option C
x----> infinity f(x) ----> infinity
is a solution
Option D
x ----> infinity f(x) tends to zero
Is no a solution
Option E
is a cyclic function
Is not a solution
Option F
is a cyclic function
Is not a solution
Option G
x----> infinity f(x) ----> infinity
is a solution
Option H
x----> infinity f(x) ----> infinity
is a solution
therefore
The answer is
Options B,C,G, and H