Tear gas, launched in the form of grenades or aerosol cans, are irritants used by police to calm rioting crowds and unruly mobs.
(A) are irritants used by police
(B) used by police, are irritants
(C) is an irritant used by police
(D) is an irritants to be used by police
(E) are irritants for use by police
(A) are irritants used by police
(B) used by police, are irritants
(C) is an irritant used by police
(D) is an irritants to be used by police
(E) are irritants for use by police
.jpg)
