Indicate which of the following is an all-integer linear program and which is a mixed-integer linear program. Write the LP Relaxation for the problem but do not attempt to solve. Max 80X1 + 75X2 s.t. (1) 5x1 + 2.5x2 S 400 (2) 2.5X1 + 2x2 250 (3) X + X2 S 150 X1, X220 and x, integer Is this linear program an all-Integer linear program or a mixed-Integer linear program? This is an all-Integer linear program. This is a mixed-Integer linear program. Write the LP Relaxation for the problem. Max s.t. (1) (2) (3) ---Select