What is being constructed based on the markings in the following diagram?
Line AB with point C between A and B, with a circle drawn from center C with a radius CB and diameter DB, where D is between A and C; point E between C and B, with a circle drawn with center D and radius DE; another circle is drawn with center B and radius DE to create an equal sized circle as circle D; circles B and D intersect at H above line AB and G below line AB, and line HG is constructed through C.
A. Inscribed regular hexagon
B. Inscribed equilateral triangle
C. Perpendicular line through a point off a line
D. Perpendicular line through a point on a line