The correct answer is: a) Ritual performances.
Manipuri masks are used in a variety of ritual performances, including the Lai Haraoba festival. These masks are often made of wood or papier-mâché and are decorated with intricate designs. They are worn by dancers who perform to tell stories about the gods and goddesses of Manipur.
Option b) is incorrect because Manipuri masks are not typically used in home decor. They are sacred objects and are not meant to be displayed in homes.
Option c) is incorrect because Manipuri masks are not typically used as tourist souvenirs. They are expensive and difficult to make, so they are not a popular item for tourists to purchase.
Option d) is incorrect because Manipuri masks are not typically used in wedding ceremonies. They are used in ritual performances, but not in weddings.