An investigation of the Maine sinking was held in 1911 because

The USS Maine sank in Havana Harbor in 1898, and an investigation at the time blamed an external explosion. The wreck was examined again in 1911 because many people doubted the reliability of the first investigation, so C, “many people did not trust the first investigation,” is correct. 1911 was about 13 years after the sinking, not less than a year.

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