<em>Answer:</em>
<em>When World War II broke out. </em>
<em>Explanation: A Clause is a unit of grammatical organization next below the sentence in rank and in traditional grammar said to consist of a subject and predicate.</em>
According to the document of the Belmont report, there are three basic elements that the informed consent should contain; these elements are information, comprehension, and voluntariness. The three elements are needed in order to analyze an informed consent. Therefore, the correct answer is D: information, comprehension, and voluntariness best describe the principle of informed consent as described in the Belmont Report.