Correct answer: C. 1967 CE
Explanation: The direct answer is option C: 1967. The Ashoka Chakra is India’s highest peacetime military decoration. The award had classes, and in 1967 these classes were renamed Ashoka Chakra, Kirti Chakra and Shaurya Chakra. To solve the question, identify that it asks about the renaming of the classes, not the original creation of the decoration: renaming → 1967. Option A, 1952, is not the year of this renaming. Option B, 1954, is associated with an earlier stage in the award’s history, but it is not the requested renaming year. Option C, 1967, is correct. Option D, 1971, is unrelated to this change. Exam cue: the three names Ashoka Chakra, Kirti Chakra and Shaurya Chakra were adopted together in 1967.