Which of the following is considered one of the four Margas?

Bhakti is recognized as one of the four Margas, or paths, in Hindu philosophy, specifically relating to spiritual practices. The path of Bhakti emphasizes devotion and love towards a personal god or deity. Practitioners engage in devotional activities such as singing hymns, chanting, and participating in rituals, which foster a deep emotional connection with the divine. This form of worship is accessible to everyone and transcends intellectual understanding, focusing instead on the heart's love for God.

Tantra, while a significant aspect of certain spiritual traditions, is typically regarded as a separate practice and doesn't fall under the traditional classification of the four Margas. Zen is associated with Buddhism and focuses on meditation and insight, and Wicca is a modern pagan religious movement with its own distinct practices and beliefs, neither of which align with the Margas defined in Hinduism. Thus, Bhakti stands out as the correct answer among the options provided.