The objective function $z= 4x + 3y $ can be maximised subject to the constraints $3x+ 4y ≤24, 8x+6y ≤48, x ≤ 5, y ≤ 6, x ≥ 0, y≥0 :$

at one point only at two points only at an infinite number of points no point exists

at an infinite number of points