Which one of the following is an artificial lake?

1. The question asks to identify the artificial lake among the given options. 2. Option (A) Kodaikanal Lake in Tamil Nadu is a man-made, star-shaped lake created in 1863 by damming a marshy area. It is thus an artificial lake. 3. Option (B) Kolleru Lake in Andhra Pradesh is one of the largest freshwater lakes in India, formed naturally between the Krishna and Godavari river deltas. 4. Option (C) Nainital Lake in Uttarakhand is a natural freshwater body, believed to have been formed by tectonic activity. 5. Option (D) Renuka Lake in Himachal Pradesh is the largest natural lake in the state, associated with mythological legends.