Give conditions on the constants a, b, c to ensure that the flux integral F . d A is positive for F = ai + bj + ck and S isa disk perpendicular to the y-axis, through (0, 7, 0) and oriented away from the origin. O b = 0, but there are no conditions on a and c. O b 0, and a > c. O b > a + c, and a > 0 and c > 0. O b > 0, but there are no conditions on a and c