Explanation
Ideas of action, consequence and rebirth developed in ancient Indian thought and were elaborated differently in Brahmanical, Buddhist and Jain traditions. Saying karma originated simply from “Hinduism and Buddhism” collapses a long development and excludes Jain formulations. The source tradition places the person, work and event in a defined historical setting. Ancient Indian religious and philosophical traditions fits that evidence because it matches the specific chronology, agency and function contained in the question. A comparison with the alternatives is useful: Classical Greek civic religion, Ancient Egyptian royal cult and Norse mythology are genuine historical terms or names, but each belongs to a different office, patron, text, region or sequence. Reading the question as a relationship among person, period, place and institutional purpose prevents that mistake. For a chronology variant, place the event within the relevant dynasty before evaluating the remaining choices. The compact memory link is therefore Ancient Indian religious and philosophical traditions together with the factual context above, not the isolated option letter.