The Faunal Assemblage from the Site of Chavín De Huántar

The faunal assemblage from the site of Chavín de Huántar, Peru, contains an abundance of leg bones with few cranial and foot bones. This pattern has been explained by:

A) large animal disturbance; cranial and foot bone were preferentially carried away from the site by carnivores, while leg bones were left behind.
B) taphonomic processes; bone preservation at high altitude sites is notoriously poor.
C) Ch'arki trade; dried llama and alpaca meat on leg bones was traded into the site from high-altitude herding communities.
D) decreasing reliance on camelid meat by residents of the site through time.