The Rate Law for a Termolecular Elementary Reaction of the Form

The rate law for a termolecular elementary reaction of the form $2 A + B \rightarrow \text { product }$ is _____.

A) $k [ \mathrm {~A} ] [ \mathrm { B } ]$
B) $k [ \mathrm {~A} ] ^ { 2 } [ \mathrm {~B} ]$
C) $k [ \mathrm {~A} ]$
D) $k [ \mathrm {~A} ] ^ { 2 }$
E) $k [ \mathrm {~A} ] [ \mathrm { B } ] [ \mathrm { C } ]$