Based on the Article, which best replaces the question mark in the diagram above?

There is a box on the left that is labeled "Cause". The box says "Shoichi Yokoi returned safely to Japan after living in the wilds of Guam for many years." There is an arrow pointing to a box on the right. It is labeled "Effect," and it has a question mark in it.
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A. Yokoi remained in Japan and chose not to revisit Guam, even after an exhibit at the Guam Museum was created in his honor.
B. Yokoi was publicly honored by younger Japanese because they viewed his strict observance of ganbaru as being worthy of praise.
C. Yokoi returned the money and gifts that were given to him following his return because he did not feel that he deserved them.
D. Yokoi was given a hero's welcome in Tokyo as many of his generation were deeply moved by his loyalty to time-honored Japanese values.