Question: A circular lake is shown with trees planted along the circumference of the lake at points A,B, and C. A line through A and B meets the tangent through C at point D.

A circular lake is shown with trees planted along the circumference of the lake at points A,B, and C. A line through A and B meets the tangent through C at point D.

What is the relationship between points A, B, C, and D in this scenario?