Correct option is C
Shoucha (B) - Purity, which is part of Niyama, not Yama.
Tapas (D) - Discipline or self-discipline, which is also part of Niyama, not Yama.
Thus, the correct answer is (B), (D) Only.
Information Booster:
Yama: The ethical guidelines that govern an individual’s behavior in society and towards others, consisting of Ahimsa (Non-violence), Satya (Truthfulness), Asteya (Non-stealing), Brahmacharya (Celibacy or self-restraint), and Aparigraha (Non-possessiveness).
Niyama: These are the personal observances in Ashtanga Yoga, which include Shoucha (Purity), Santosha (Contentment), Tapas (Discipline), Svadhyaya (Self-study), and Ishvara Pranidhana (Surrender to a higher power).