Explanation:

Option (a) is correct: Dhokra Art is a non-ferrous metal casting technique known as lost-wax casting or cire perdue. This technique has been known to be in existence for nearly 4000 years. A statue of a dancing doll excavated in Mohenjo-Daro is the oldest known lost-wax technique artifact. The name ‘Dhokra’ is derived from the Dhokra Damar tribes of West Bengal who originally practised this art form. 

Option (b) is not correct: Warli painting employs the use of minimal elements and materials to depict the stories of the Warli community. “In this art form, they use basic figures like triangles, circles, squares and lines. Option (c) is not correct: Rogan art is the art of oil painting on cloth which is practised in the district of Gujarat. In the tiny village of Nirona in the Navtarana tehsil this art survives in the various households which cater to this craft. The word 'rogan' comes from the Persian word for oil, thus the oil-base for the painting comes from the seeds of castor oil. The rogan paste once prepared is mixed with various colours and is laid on cloth with the help of a stylus. No prior design or layout is made on the cloth, the patterns and designs are created by the artisan on the go. Option (d) is not correct: The Dhokra art is not associated with prehistoric paintings.