This is known as imperialism. I hope this helps!
Henry Kissinger was the American who negotiated the cease-fire with North Vietnam, essentially ending the United States involvement in the conflict between the North and South Vietnam. The correct option among all the options given in the question is option "c". He was also the United States Secretary of State during the time in which Richard Nixon and Gerald Ford were the presidents.
Growing overseas trade, economic prosperity, and a climate for progress affected<span> the working class.
</span>Cities grew speedily<span>, </span>therefore there have been<span> no development plans, </span>healthful<span> codes, or building codes. It </span>cause<span> inadequate housing, education and </span>enforcement<span>. Garbage </span>heaped within the<span> streets. F</span>olks<span> lived in </span>shut<span> quarters and caused diseases to </span>unfold faster<span>. T</span>he typical lifetime<span> in urban areas was </span>seventeen<span> (38 in rural areas).</span>