Answer;
B. Tongatong
Explanation:
used by the people of Kalinga to communicate with spirits during house blessings. It is made of bamboo cut in various lengths. When you hit it against soft earth a certain drone reverberates though the instrument's open mouth. When an entire set of Tongatong is played in interloping rhythm and prolonged with the tribal chanting, it could put the audience and the dancers in a trance.
