1.If a point PPP denotes a complex number z=x+iyz = x + iyz=x+iy in the argand plane and if z+1z+i\frac{z+1}{z+i}z+iz+1 is purely real, then the locus of PPP isa.x+y+1=0x + y + 1 = 0x+y+1=0b.x2+y2+x+y=0x^2 + y^2 + x + y = 0x2+y2+x+y=0c.x2+y2+2y+1=0x^2 + y^2 + 2y + 1 = 0x2+y2+2y+1=0, (x,y)≠(0,−1)(x, y) \ne (0, -1)(x,y)=(0,−1)d.x+y+1=0x + y + 1 = 0x+y+1=0, (x,y)≠(0,−1)(x, y) \ne (0, -1)(x,y)=(0,−1)Login to continueOnly logged in users canattempt or see the solution.