Which was a change made to Japan's constitution? a. Japanese citizens travel to other countries.
b. No military was allowed.
c. The Emperor's power was reduced to that or a ceremonial leader only.
d. Japanese citizens could not run for office unless they had approval from the U. S. first.

Explanation:

The Emperor of Japan is the head of state and the head of the Imperial Family of Japan. Under the Constitution of Japan, he is defined as "the Symbol of the State and of the Unity of the People" and his title is derived from "the Will of the People, who are the Sovereign". Imperial Household Law governs the line of imperial succession. The Supreme Court does not have judicial power over him.[2] He is also the Head of the Shinto religion. In Japanese, the Emperor is called Tennō (天皇, pronounced [tennoꜜː]), literally "emperor of God". The Japanese Shinto religion holds him to be the direct descendant of the sun goddess Amaterasu. The Emperor is also the head of all national Japanese orders, decorations, medals, and awards. In English, the use of the term Mikado (帝／御門) for the emperor was once common but is now considered obsolete.[3]

Currently, the Emperor of Japan is the only remaining head of state in the world with the highest monarchical title of "Emperor".[4] The Imperial House of Japan is the oldest continuing monarchical house in the world.[5] The historical origins of the emperors lie in the late Kofun period of the 3rd–6th centuries AD, but according to the traditional account of the Kojiki (finished 712) and Nihon Shoki (finished 720), Japan was founded in 660 BC by Emperor Jimmu, who was said to be a direct descendant of Amaterasu.[6][7] Naruhito is the current Emperor of Japan. He acceded to the Chrysanthemum Throne upon the abdication of his father, Emperor Emeritus Akihito on 1 May 2019.

The role of the Emperor of Japan has historically alternated between a largely ceremonial symbolic role and that of an actual imperial ruler. Since the establishment of the first shogunate in 1199, the Emperors of Japan have rarely taken on a role as supreme battlefield commander, unlike many Western monarchs. Japanese emperors have nearly always been controlled by external political forces, to varying degrees. For example, between 1192 and 1867, the shōguns, or their shikken regents in Kamakura (1203–1333), were the de facto rulers of Japan, although they were nominally appointed by the emperor. After the Meiji Restoration in 1867, the emperor was the embodiment of all sovereign power in the realm, as enshrined in the Meiji Constitution of 1889. Since the enactment of the 1947 constitution, the role of emperor has been relegated to that of a ceremonial head of state without even nominal political powers.

Since the mid-nineteenth century, the Imperial Palace has been called Kyūjō (宮城), later Kōkyo (皇居), and is on the former site of Edo Castle in the heart of Tokyo (the current capital of Japan). Earlier, emperors resided in Kyoto (the ancient capital) for nearly eleven centuries. The Emperor's Birthday (currently 23 February) is a national holiday.

answer; the civil right act of 1964;