The correct answer is B) the U.S. bombing of North Vietnam had been ineffective.
<em>Robert McNamara´s change in policy regarding the war was influenced by a defense study that found that the U.S. bombing of North Vietnam had been ineffective.
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Robert S. McNamara (1916-2009) was the Secretary of Defense during the U.S.-Vietnam War. During his tenure, McNamara thought that the U.S. Army had to be prepared to fight the war in any conditions, so he reorganized the United States defense program.
In 1967 he ordered a study of the role of the U.S. in Vietnam. The document was known as “The Pentagon Papers.” Disillutioned by the war results, he resigned in 1968.
The effective changes for Rajput society in the medieval period would be the institution of human rights and democracy.
<h3 /><h3>What was Rajput society like?</h3>
Originating in India and Pakistan, it had greater prominence during the 6th and 12th centuries, being a society with a well-defined caste system and creeds, with the upper class formed by ministers, feudal chiefs and government officials.
Therefore, the Rajput were the brave fighters who determined the culture of society, where there was a determined class system, with social disparity and slave labor in the lower classes.
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Answer: B) work more closely with whites in the south
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