Final answer:
False, Reincarnation is not extensively mentioned in the Vedas, as these ancient texts focus more on rituals. The concept of reincarnation is developed in later Hindu texts such as the Upanishads.
Step-by-step explanation:
Reincarnation, while a core concept in Hinduism, is not extensively mentioned in the earliest Vedic texts, which focus more on rituals and hymns. The later texts, such as the Upanishads, elaborate on ideas such as samsara (the cycle of rebirth) and karma (the law of action and reaction). Therefore, the statement, 'Reincarnation is extensively mentioned in the Vedas,' is False. The Vedas lay the foundation for many beliefs, but the detailed philosophical concepts of reincarnation are more thoroughly developed in later literature.