The locus of points $P$ such that $\angle APB = 90^{\circ}$ for a fixed segment $AB$ is—

Question

Accepted Answer

a circle with $AB$ as diameter (excluding $A,B$)

Answer

a straight line

Answer

a parabola

Answer

an ellipse

The locus of points PPP such that ∠APB=90∘\angle APB = 90^{\circ}∠APB=90∘ for a fixed segment ABABAB is—