Classical Wind Music Instrument Narasinghapettai Nagaswaram got GI Tag

Current Context: The Narasinghapettai nagaswaram, a classical wind music instrument which is made by an artisan at Kumbakonam recently, got Geographical Indication (GI) tag.

• The GI registry has issued registration certificate number 420.
• A major portion of the ‘Narasinghapettai nagaswaram’ is made from the aacha (Hardwickia binata) tree and many a time the artisans use the wood from parts of old houses.

Question: 

Q.1 Who has recently got the GI tag?
a. Narasinghapettai nagaswaram
b. Coorg betel nut
c. None
d. Both a and b