Explain the presence of xoloitzcuintlis in Indian burial mounds.

A. Indians believed xoloitzcuintlis would guide their souls to the underworld.
B. Indians looked at xoloitzcuintlis as a symbol of eternal life.
C.Indians believed they would live again as xoloitzcuintlis in the next life.
D. Indians were convinced xoloitzcuintlis would protect and guard their tombs.