The correct statement is "As a result of the Watts riots in the year 1965 was that they proved to be the last of the race riots of that year." So, the correct option is C.
Watts riots were racial riots that were caused due to a police raid at an void after-party club in the Watts club at the Los Angeles.
Hence, due to ill effects of riots on country's economy by such riots the result of Watts riots was that they were the last riots for racial discrimination that year in the United States of America.
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