Read the introductory paragraph. The elegant luxury liner Titanic was “the Queen of the Seas” in its time. Designed with state-of-the-art technology, it was thought to be practically unsinkable. What could have caused the massive steamship to founder off the freezing coast of Newfoundland on its first Atlantic voyage in 1912? Research indicates that there were two main causes for the Titanic disaster: human error and design defects. Which sentence in this paragraph is the thesis statement that the writer will attempt to prove in the essay? “Designed with state-of-the-art technology, it was thought to be practically unsinkable." “What could have caused the massive steamship to founder off the freezing coast of Newfoundland on its first Atlantic voyage in 1912?" “The elegant luxury liner Titanic was the 'Queen of the Seas' in its time." “Research indicates that there were two main causes for the Titanic disaster: human error and design defects."