The curve represented by z z̅ + (1 + i) z +(1 - i) z̅ = 0 will be:

• A. a circle with center at (-1, 1) and radius as √2
• B. an ellipse with semi-major axis as 2 semi-minor axis as 1
• C. a straight line with x - intercept as - 2
• D. a parabola with vertex at (-1, 0)