Q.) Vertices of a variable triangle are (3, 4), (5 cos θ, 5 sin θ) and (5 sin θ,-5 cos θ), where θ ∈ R. Locus of its orthocentre is
[A](x + y - 1)² + (x - y - 7)² = 100
[B](x + y - 7)² + (x - y - 1)² = 100
[C](x + y - 7)² + (x + y - 1)² = 100
[D](x + y - 7)² + (x - y + 1)² = 100