41) Binary variables are
A) 0 or 1 only.
B) any integer value.
C) any continuous value.
D) any negative integer value.
42) If we are solving a 0-1 integer programming problem, the
constraint x1 + x2 = 1 is a __________ constraint.
A) multiple-choice
B) mutually exclusive
C) conditional
D) corequisite
43) If we are solving a 0-1 integer programming problem, the
constraint x1 ≤ x2 is a __________ constraint.
A) multiple-choice
B) mutually exclusive
C) conditional
D) corequisite