In a model, x1 ≥ 0 and integer, x2 ≥ 0, and x3 = 0, 1. Which of the following solutions would NOT be feasible?a. x1 = 0, x2 = 8, x3 = 0 b. x1 = 5, x2 = 3, x3 = 0 c. x1 = 4, x2 = 0.389, x3 = 1 d. None of the provided answers is correct e. x1 = 2, x2 = 3, x3 = 0.578