1.If z=41−iz = \frac{4}{1 - i}z=1−i4, then zˉ\bar{z}zˉ is (where zˉ\bar{z}zˉ is complex conjugate of zzz)a.2(1+i)2(1 + i)2(1+i)b.(1+i)(1 + i)(1+i)c.21−i\frac{2}{1 - i}1−i2d.41+i\frac{4}{1 + i}1+i4Login to continueOnly logged in users canattempt or see the solution.