A 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.

279 own a hand gun.

437 own a rifle.

499 supported the ban on hand guns.

144 own both a hand gun and a rifle.

200 own a rifle but no hand gun and do not support the ban on hand guns.

80 own a hand gun and support the ban on hand guns.

54 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? 

(b) do not own a gun and support the ban on hand guns?

 

(c) do not own a gun and do not support the ban on hand guns?