The correct answer is: a) Filigree work.
Filigree is a type of jewelry making that uses fine wire to create delicate patterns. It is often used in combination with other materials, such as beads, precious stones, and enamel. Manipuri jewelry is known for its intricate designs, which are often created using filigree work.
Beadwork is another type of jewelry making that uses beads to create patterns. It can be used to create simple or complex designs, and it can be combined with other materials, such as metal, leather, and cloth. Precious stones are stones that are valued for their beauty and rarity. They are often used in jewelry, and they can be set in metal or mounted in other ways. Enameling is a technique that uses glass to create a colored or patterned surface on metal. It is often used in jewelry, and it can be used to create simple or complex designs.
In conclusion, the correct answer is: a) Filigree work.