The correct answer is: Wooden boxes.
Manjusha art is a type of Indian art that uses wooden boxes as containers for offerings to the serpent god. The boxes are often decorated with intricate carvings and paintings, and they may also contain sacred texts or other objects. Manjusha art is a beautiful and unique way to honor the serpent god, and it is a tradition that has been passed down for centuries.
Painted scrolls are not typically used as boxes for offerings to the serpent god. However, they may be used to depict scenes from the life of the serpent god or to tell stories about him.
Embroidered cloth is also not typically used as boxes for offerings to the serpent god. However, it may be used to create clothing or other items that are used in worship.
Metal sculptures are not typically used as boxes for offerings to the serpent god. However, they may be used to create statues or other objects that are used in worship.