The correct answer is A. Metal work.
Dhokra is a traditional metal casting technique practiced by the tribal people of eastern India and western Bangladesh. It is a lost-wax casting process, in which a wax model is created and then covered in clay. The clay is then heated, melting the wax and leaving a hollow mold. Molten metal is then poured into the mold, filling the void and creating a metal replica of the wax model.
Dhokra is used to create a variety of objects, including sculptures, jewelry, and household utensils. The technique is known for its intricate designs and intricate details.
Option B is incorrect because paintings are not created using the lost-wax casting process.
Option C is incorrect because bamboo craft is not a metalworking technique.
Option D is incorrect because wood craft is not a metalworking technique.