QuestionA special-interest group has conducted a survey concerning a ban on hand guns. Note: A rifle is a gun, but it is not a hand gun. The survey yielded the following results for the 1000 households that responded. 271 own a hand gun. 443 own a rifle. 493 supported the ban on hand guns. 140 own both a hand gun and a rifle. 204 own a rifle but no hand gun and do not support the ban on hand guns. 70 own a hand gun and support the ban on hand guns. 52 own both a hand gun and a rifle and also support the ban on hand guns. How many of the surveyed households: (a) only own a hand gun and do not support the ban on hand guns? $\qquad$ (b) do not own a gun and support the ban on hand guns? $\square$ (c) do not own a gun and do not support the ban on hand guns? $\square$