The correct answer is: a) Damnyam
The damnyam is a traditional musical instrument of the Aka tribe of the Eastern Himalayas. It is a stringed instrument made of bamboo and is played with a bow. The damnyam is used to accompany singing and dancing.
The yangchang is a traditional musical instrument of the Yi people of China. It is a long, bamboo flute with six holes. The yangchang is used to accompany singing and dancing.
The piwang is a traditional musical instrument of the Han Chinese people. It is a two-stringed lute made of wood. The piwang is used to accompany singing and dancing.
The gintang is a traditional musical instrument of the Tibetan people. It is a two-stringed lute made of wood. The gintang is used to accompany singing and dancing.
The damnyam is the only instrument on the list that is made of bamboo and is used by the Aka tribe.