Answer : 4. "Adi Kekir, Tibetan carpet, Wancho wooden crafts"
Explanation :

Three products from Arunachal Pradesh – Adi Kekir ginger, handmade carpets by Tibetan residents and wooden objects by the Wancho community – have received the coveted GI tag recognizing their unique geographical roots. Adi Kekir is a famous variety of ginger while Wancho artisans create sculptural figures on wooden objects. GI tag certifies specific products as originating from a particular region to boost their marketability.