Final answer:
The Vedas are indeed full of hymns, mantras, and rituals intended for priests to perform, making the statement True. These ancient religious texts have significantly influenced Hindu practices and philosophy.
Step-by-step explanation:
The statement that the Vedas are full of hymns, mantras, and rituals for priests to perform is A. True. These texts are central to the ancient religious practices of the Indo-Aryans in India and contain significant spiritual and religious content that has shaped Hinduism. The Vedas, written in Sanskrit, encompass four major texts: the Rigveda, the Samaveda, the Yajurveda, and the Atharvaveda. They include not only hymns but also mantras for rituals, philosophical discussions, and guidelines for the performance of various rites by priests. The content of the Vedas covers a wide range of topics, from cosmology and theology to practices of daily life, thereby reflecting the religious and social structure of Vedic society.