Social Darwinism explained the operation of society as "survival of the fittest."
People often associate the term "survival of the fittest" with Charles Darwin, but actually it was terminology that came from Herbert Spencer, the founder of what is known as Social Darwinism. (Spencer wouldn't have called it that - he and Darwin were rivals.) Darwin used the term "natural selection" in his descriptions of biological evolution. Spencer was unafraid to apply the same concepts to competition within the human species, contending that the stronger, fitter social or cultural groups will survive better than others and dominate over weaker groups.
Soviet Union I believe was the southerners
The correct answer is D. It changed the minds of many war supporters in the United States
Explanation
During the Vietnam War, the North Vietnamese Communist Army planned an offensive to weaken the South Vietnamese Army and achieve victory much faster. This military plan is known as "the Tet offensive" that was carried out in 1968, however, the results were not as expected since the effects on the enemy army were not as expected. This plan had a consequence on the American population because the United States Army and the government had campaigned in support of the Vietnam War and the population was deceived into believing that they were close to victory, but once This attack occurred, the confidence of the people in the army decreased and they though that all was a lie, so the support for this intervention declined quickly. So, the correct answer is D. It changed the minds of many war supporters in the United States
The Petition of Right reinforces the Magna Carta.
The Petition of Right was made to restate the legitimacy of the Magna Carta. Parliament used it because the King had been going against Magna Carta by gathering forced loans.
I believe it was Eleanor Roosevelt.