Which passage from the Article best supports the opinion that the construction of flutes allows each Native American flute player to create an original sound?

Question

As Thompson listened to the soothing sounds of Nakai's instrument, known as the Native American flute, the words of the tribal elders finally clicked. Trees do sing—through the flutes carved from their wood.
Each flute had two chambers, one to collect breath and one to emit sound, which allowed the player to breathe without skipping a beat. And because players traditionally carved their own flutes—the Ojibwe call them "bibigwanan"—from a single piece of wood, no two are identical.
Thompson had dreamed of performing at the NMAI for 10 years. For his big performance, he chose songs recorded in the early 1900s, "before our culture got erased." His program was meant to convey the history, pain, and spirit of the Ojibwe people—stories that only "singing trees" may be able to fully tell.
Thompson is countering that by sharing the authentic sounds and stories of his people in his own performances, including his February 2019 show at the National Museum of the American Indian (NMAI) in New York.

Answer 1

Each flute had two chambers, one to collect breath and one to emit sound, which allowed the player to breathe without skipping a beat. And because players traditionally carved their own flutes—the Ojibwe call them "bibigwanan"—from a single piece of wood, no two are identical.