A Reaction Has the Following Rate Law: Rate = K[A][B]²

Multiple Choice

A reaction has the following rate law: Rate = k[A][B]²
In experiment 1, the concentrations of A and B are both 0.10 mol L⁻¹; in experiment 2, the concentrations are both 0.30 mol L⁻¹. If the temperature stays constant, what is the value of the ratio, Rate(2) /Rate(1) ?

A) 3.0
B) 6.0
C) 9.0
D) 18
E) 27