% 4.9	Fill in the blank with one of the choices to make this script
% evaluate so that b = 6:
% a = 1;
% b = 0;
% if  _______
%   b = 6;
% else 
%   b = 2;
% end
% 
% a. b && a
% b. b || ~a
% c. ~b
% d. ~a
% e. a == b

% Solution 4-9
%%  c. ~b