Final answer:
Navajo textiles known as "Chief Blankets" are so called because of their association with tribal leaders, not because of their color symbolism, intricate patterns, or use in ceremonial rituals. The correct answer is c).
Step-by-step explanation:
Woven Navajo textiles, often referred to as "Chief Blankets," have a special significance and are named as such because of their association with tribal leaders (c). These blankets were woven with intricate designs that included horizontal, diamond, and zigzag themes using vibrant colors and materials such as undyed wool, fleece dyed with indigo, and raveled bayeta. This bayeta fabric was acquired through trade and was notable for its rich red color, which came from dye derived from a specific insect species. Navajo blankets became a significant item of clothing during this period and held a high status, often associated with leaders within the tribe.