What does zongzi manifest as a sacrifice?

What does zongzi manifest as a sacrifice?
A.Zongzi manifests people’s tribute to the Heaven.
B.Zongzi manifests people’s tribute to ancestors.
C.Zongzi manifests people’s tribute to the Earth.
D.Zongzi manifests people’s tribute to the Buddha.
正确答案：Zongzi manifests people’s tribute to ancestors.