Option A is correct because the context clearly states that 'The Congress did manage to get a majority in the Lok Sabha, but with its lowest tally of seats and share of votes since 1952.' This confirms Congress won the Lok Sabha elections. Additionally, the context mentions that 'The results jolted the Congress at both the national and state levels' and lists several political stalwarts who lost in their constituencies across different states (Kamaraj in Tamil Nadu, S.K. Patil in Maharashtra, Atulya Ghosh in West Bengal, and K. B. Sahay in Bihar), indicating Congress lost Assembly elections in many states. Option B is incorrect as Congress won the Lok Sabha. Option C is incorrect as Congress retained majority in Lok Sabha in 1967; the coalition situation mentioned in the context refers to the post-split period before 1971 elections. Option D is incorrect as Congress won with its lowest tally since 1952, not an increased majority.